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fix: bound MCP HTTP body size#3216

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averikitsch merged 7 commits into
googleapis:mainfrom
Deeven-Seru:fix-3103-mcp-body-limit
Jun 12, 2026
Merged

fix: bound MCP HTTP body size#3216
averikitsch merged 7 commits into
googleapis:mainfrom
Deeven-Seru:fix-3103-mcp-body-limit

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@Deeven-Seru

@Deeven-Seru Deeven-Seru commented May 12, 2026

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Summary

  • guard the MCP HTTP transport with http.MaxBytesReader capped at 10 MiB
  • translate over-sized bodies into HTTP 413 + JSON-RPC parse errors so clients see a deterministic failure
  • cover the body limit with an HTTP test to prevent regressions

Testing

@Deeven-Seru Deeven-Seru requested a review from a team as a code owner May 12, 2026 10:04

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Code Review

This pull request introduces a 10 MiB limit on MCP HTTP request bodies to prevent unbounded memory usage. It implements this using http.MaxBytesReader in the httpHandler and adds a corresponding unit test to verify the enforcement of this limit and the returned error response. Feedback suggests making this hardcoded limit configurable via the server configuration to accommodate use cases involving larger datasets.

Comment thread internal/server/mcp.go Outdated
@Deeven-Seru Deeven-Seru force-pushed the fix-3103-mcp-body-limit branch from f7060c7 to 95e90aa Compare May 12, 2026 10:29
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/gemini review

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Code Review

This pull request implements a configurable limit for MCP HTTP request body sizes to enhance server stability. It introduces a new --http-max-request-bytes flag, updates the ServerConfig and Server structs, and utilizes http.MaxBytesReader in the request handler to enforce the limit, returning a 413 Request Entity Too Large status when exceeded. Comprehensive tests were added to validate the default and custom limit behaviors. A review comment suggests removing a redundant check in the request handler since the limit is already initialized during server setup.

Comment thread internal/server/mcp.go Outdated
Comment thread cmd/internal/flags.go
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We should also update /api endpoint

if err = util.DecodeJSON(r.Body, &data); err != nil {

@Deeven-Seru Deeven-Seru force-pushed the fix-3103-mcp-body-limit branch from 99e44cf to a84aee2 Compare June 10, 2026 01:04
@averikitsch averikitsch added the tests: run Label to trigger Github Action tests. label Jun 10, 2026
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/gcbrun

@github-actions github-actions Bot removed the tests: run Label to trigger Github Action tests. label Jun 10, 2026
@averikitsch averikitsch enabled auto-merge (squash) June 10, 2026 18:31
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@averikitsch averikitsch added the tests: run Label to trigger Github Action tests. label Jun 11, 2026
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@averikitsch averikitsch added the tests: run Label to trigger Github Action tests. label Jun 12, 2026
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@averikitsch averikitsch added the tests: run Label to trigger Github Action tests. label Jun 12, 2026
@github-actions github-actions Bot removed the tests: run Label to trigger Github Action tests. label Jun 12, 2026
@averikitsch averikitsch merged commit d4f4342 into googleapis:main Jun 12, 2026
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github-actions Bot pushed a commit that referenced this pull request Jun 12, 2026
## Summary
- guard the MCP HTTP transport with http.MaxBytesReader capped at 10 MiB
- translate over-sized bodies into HTTP 413 + JSON-RPC parse errors so
clients see a deterministic failure
- cover the body limit with an HTTP test to prevent regressions

## Testing
- go test ./internal/server -run TestMcpRequestBodyLimit
fixes #3103

Co-authored-by: Averi Kitsch <[email protected]> d4f4342
github-actions Bot pushed a commit to rodineyw/mcp-toolbox that referenced this pull request Jun 12, 2026
## Summary
- guard the MCP HTTP transport with http.MaxBytesReader capped at 10 MiB
- translate over-sized bodies into HTTP 413 + JSON-RPC parse errors so
clients see a deterministic failure
- cover the body limit with an HTTP test to prevent regressions

## Testing
- go test ./internal/server -run TestMcpRequestBodyLimit
fixes googleapis#3103

Co-authored-by: Averi Kitsch <[email protected]> d4f4342
github-actions Bot pushed a commit to Jaleel-zhu/genai-toolbox that referenced this pull request Jun 12, 2026
## Summary
- guard the MCP HTTP transport with http.MaxBytesReader capped at 10 MiB
- translate over-sized bodies into HTTP 413 + JSON-RPC parse errors so
clients see a deterministic failure
- cover the body limit with an HTTP test to prevent regressions

## Testing
- go test ./internal/server -run TestMcpRequestBodyLimit
fixes googleapis#3103

Co-authored-by: Averi Kitsch <[email protected]> d4f4342
github-actions Bot pushed a commit to pepe57/genai-toolbox that referenced this pull request Jun 12, 2026
## Summary
- guard the MCP HTTP transport with http.MaxBytesReader capped at 10 MiB
- translate over-sized bodies into HTTP 413 + JSON-RPC parse errors so
clients see a deterministic failure
- cover the body limit with an HTTP test to prevent regressions

## Testing
- go test ./internal/server -run TestMcpRequestBodyLimit
fixes googleapis#3103

Co-authored-by: Averi Kitsch <[email protected]> d4f4342
Yuan325 added a commit that referenced this pull request Jun 18, 2026
🤖 I have created a release *beep* *boop*
---


##
[1.5.0](v1.4.0...v1.5.0)
(2026-06-18)


### Features

* **auth/google:** Require audience or clientId for mcpEnabled
([#3450](#3450))
([59f7b6e](59f7b6e))
* Enable per source level flags for sql commenter
([#3465](#3465))
([ecce6b7](ecce6b7))
* **mcp:** Add URL parameter binding for HTTP transport
([#3112](#3112))
([0cc7b37](0cc7b37))
* **scylladb:** Adding support for ScyllaDB source and tool
([#3119](#3119))
([2dada83](2dada83))
* **server:** Add support for toolset filtering in prebuilt CLI flag
([#3245](#3245))
([7cc4f65](7cc4f65))
* **skills:** Generate skills offline without live source connections
([#3388](#3388))
([4c860b6](4c860b6))
* **skills:** Tolerate missing env vars during offline skills-generate
([#3399](#3399))
([ea5d3e5](ea5d3e5))
* **source/cloud-storage:** Restrict bucket and local path access
([#3454](#3454))
([2c3ca5d](2c3ca5d))
* **tools/bigquery:** Add per tool query label in BigQuery jobs
([#1975](#1975))
([3f6a49f](3f6a49f))
* **tools/dataplex:** Add tools to support metadata enrichment workflow
([#3270](#3270))
([05289aa](05289aa))
* **tools/mysql:** Add show-query-stats and list-all-locks tools for
MySQL and Cloud SQL MySQL source
([#2954](#2954))
([a9693bd](a9693bd))
* **tools:** Decouple tool initialization from sources
([#3355](#3355))
([32a24e3](32a24e3))


### Bug Fixes

* **auth/dataplex:** Fix failing source with service account credentials
([#3369](#3369))
([ba4deef](ba4deef))
* **bigquery:** Wire maximumBytesBilled into prebuilt config
([#3385](#3385))
([4abbf6e](4abbf6e))
* Bound MCP HTTP body size
([#3216](#3216))
([d4f4342](d4f4342))
* **config:** Add doc/line context to parse errors
([#2957](#2957))
([4b097da](4b097da))
* Escape delimiter characters in applyEscape to prevent SQL injection
([#2811](#2811))
([932519a](932519a))
* **npm:** Source binary version from cmd/version.txt
([#3417](#3417))
([6ffbdec](6ffbdec))
* **prebuilt/alloydb-omni:** Require password env var explicitly
([#3398](#3398))
([fcbe3e7](fcbe3e7))
* **server:** Fail if MCP auth is enabled together with enable-api
([#3435](#3435))
([a6ff910](a6ff910))
* **server:** Return errors instead of panicking in InitializeConfigs
([#3397](#3397))
([f48b01d](f48b01d))
* **source/cloudhealthcare:** Validate pageURL parameter to prevent SSRF
([#3453](#3453))
([9abf47d](9abf47d))
* **source/dataplex,source/datalineage:** Specify cloud-platform scope
for default credentials
([#3376](#3376))
([13e8c36](13e8c36))
* **source/http:** Implement SSRF guard
([#3448](#3448))
([24d7d29](24d7d29))
* **tool/bigquery-execute-sql:** Prevent dataset restriction bypass
([#3452](#3452))
([ca6d5e3](ca6d5e3))
* **tool/mysql-get-query-plan:** Prevent query execution bypass and
statement injection
([#3235](#3235))
([7ed1e7b](7ed1e7b))
* **tool/spanner-sql,tool/spanner-execute-sql:** Use read-only
annotations when readOnly is set
([#3338](#3338))
([8bde0ec](8bde0ec))

---
This PR was generated with [Release
Please](https://github.com/googleapis/release-please). See
[documentation](https://github.com/googleapis/release-please#release-please).

---------

Co-authored-by: release-please[bot] <55107282+release-please[bot]@users.noreply.github.com>
Co-authored-by: Yuan Teoh <[email protected]>
github-actions Bot pushed a commit that referenced this pull request Jun 18, 2026
🤖 I have created a release *beep* *boop*
---

##
[1.5.0](v1.4.0...v1.5.0)
(2026-06-18)

### Features

* **auth/google:** Require audience or clientId for mcpEnabled
([#3450](#3450))
([59f7b6e](59f7b6e))
* Enable per source level flags for sql commenter
([#3465](#3465))
([ecce6b7](ecce6b7))
* **mcp:** Add URL parameter binding for HTTP transport
([#3112](#3112))
([0cc7b37](0cc7b37))
* **scylladb:** Adding support for ScyllaDB source and tool
([#3119](#3119))
([2dada83](2dada83))
* **server:** Add support for toolset filtering in prebuilt CLI flag
([#3245](#3245))
([7cc4f65](7cc4f65))
* **skills:** Generate skills offline without live source connections
([#3388](#3388))
([4c860b6](4c860b6))
* **skills:** Tolerate missing env vars during offline skills-generate
([#3399](#3399))
([ea5d3e5](ea5d3e5))
* **source/cloud-storage:** Restrict bucket and local path access
([#3454](#3454))
([2c3ca5d](2c3ca5d))
* **tools/bigquery:** Add per tool query label in BigQuery jobs
([#1975](#1975))
([3f6a49f](3f6a49f))
* **tools/dataplex:** Add tools to support metadata enrichment workflow
([#3270](#3270))
([05289aa](05289aa))
* **tools/mysql:** Add show-query-stats and list-all-locks tools for
MySQL and Cloud SQL MySQL source
([#2954](#2954))
([a9693bd](a9693bd))
* **tools:** Decouple tool initialization from sources
([#3355](#3355))
([32a24e3](32a24e3))

### Bug Fixes

* **auth/dataplex:** Fix failing source with service account credentials
([#3369](#3369))
([ba4deef](ba4deef))
* **bigquery:** Wire maximumBytesBilled into prebuilt config
([#3385](#3385))
([4abbf6e](4abbf6e))
* Bound MCP HTTP body size
([#3216](#3216))
([d4f4342](d4f4342))
* **config:** Add doc/line context to parse errors
([#2957](#2957))
([4b097da](4b097da))
* Escape delimiter characters in applyEscape to prevent SQL injection
([#2811](#2811))
([932519a](932519a))
* **npm:** Source binary version from cmd/version.txt
([#3417](#3417))
([6ffbdec](6ffbdec))
* **prebuilt/alloydb-omni:** Require password env var explicitly
([#3398](#3398))
([fcbe3e7](fcbe3e7))
* **server:** Fail if MCP auth is enabled together with enable-api
([#3435](#3435))
([a6ff910](a6ff910))
* **server:** Return errors instead of panicking in InitializeConfigs
([#3397](#3397))
([f48b01d](f48b01d))
* **source/cloudhealthcare:** Validate pageURL parameter to prevent SSRF
([#3453](#3453))
([9abf47d](9abf47d))
* **source/dataplex,source/datalineage:** Specify cloud-platform scope
for default credentials
([#3376](#3376))
([13e8c36](13e8c36))
* **source/http:** Implement SSRF guard
([#3448](#3448))
([24d7d29](24d7d29))
* **tool/bigquery-execute-sql:** Prevent dataset restriction bypass
([#3452](#3452))
([ca6d5e3](ca6d5e3))
* **tool/mysql-get-query-plan:** Prevent query execution bypass and
statement injection
([#3235](#3235))
([7ed1e7b](7ed1e7b))
* **tool/spanner-sql,tool/spanner-execute-sql:** Use read-only
annotations when readOnly is set
([#3338](#3338))
([8bde0ec](8bde0ec))

---
This PR was generated with [Release
Please](https://github.com/googleapis/release-please). See
[documentation](https://github.com/googleapis/release-please#release-please).

---------

Co-authored-by: release-please[bot] <55107282+release-please[bot]@users.noreply.github.com>
Co-authored-by: Yuan Teoh <[email protected]> 45c0f86
github-actions Bot pushed a commit to renovate-bot/googleapis-_-genai-toolbox that referenced this pull request Jun 18, 2026
🤖 I have created a release *beep* *boop*
---

##
[1.5.0](googleapis/mcp-toolbox@v1.4.0...v1.5.0)
(2026-06-18)

### Features

* **auth/google:** Require audience or clientId for mcpEnabled
([googleapis#3450](googleapis#3450))
([59f7b6e](googleapis@59f7b6e))
* Enable per source level flags for sql commenter
([googleapis#3465](googleapis#3465))
([ecce6b7](googleapis@ecce6b7))
* **mcp:** Add URL parameter binding for HTTP transport
([googleapis#3112](googleapis#3112))
([0cc7b37](googleapis@0cc7b37))
* **scylladb:** Adding support for ScyllaDB source and tool
([googleapis#3119](googleapis#3119))
([2dada83](googleapis@2dada83))
* **server:** Add support for toolset filtering in prebuilt CLI flag
([googleapis#3245](googleapis#3245))
([7cc4f65](googleapis@7cc4f65))
* **skills:** Generate skills offline without live source connections
([googleapis#3388](googleapis#3388))
([4c860b6](googleapis@4c860b6))
* **skills:** Tolerate missing env vars during offline skills-generate
([googleapis#3399](googleapis#3399))
([ea5d3e5](googleapis@ea5d3e5))
* **source/cloud-storage:** Restrict bucket and local path access
([googleapis#3454](googleapis#3454))
([2c3ca5d](googleapis@2c3ca5d))
* **tools/bigquery:** Add per tool query label in BigQuery jobs
([googleapis#1975](googleapis#1975))
([3f6a49f](googleapis@3f6a49f))
* **tools/dataplex:** Add tools to support metadata enrichment workflow
([googleapis#3270](googleapis#3270))
([05289aa](googleapis@05289aa))
* **tools/mysql:** Add show-query-stats and list-all-locks tools for
MySQL and Cloud SQL MySQL source
([googleapis#2954](googleapis#2954))
([a9693bd](googleapis@a9693bd))
* **tools:** Decouple tool initialization from sources
([googleapis#3355](googleapis#3355))
([32a24e3](googleapis@32a24e3))

### Bug Fixes

* **auth/dataplex:** Fix failing source with service account credentials
([googleapis#3369](googleapis#3369))
([ba4deef](googleapis@ba4deef))
* **bigquery:** Wire maximumBytesBilled into prebuilt config
([googleapis#3385](googleapis#3385))
([4abbf6e](googleapis@4abbf6e))
* Bound MCP HTTP body size
([googleapis#3216](googleapis#3216))
([d4f4342](googleapis@d4f4342))
* **config:** Add doc/line context to parse errors
([googleapis#2957](googleapis#2957))
([4b097da](googleapis@4b097da))
* Escape delimiter characters in applyEscape to prevent SQL injection
([googleapis#2811](googleapis#2811))
([932519a](googleapis@932519a))
* **npm:** Source binary version from cmd/version.txt
([googleapis#3417](googleapis#3417))
([6ffbdec](googleapis@6ffbdec))
* **prebuilt/alloydb-omni:** Require password env var explicitly
([googleapis#3398](googleapis#3398))
([fcbe3e7](googleapis@fcbe3e7))
* **server:** Fail if MCP auth is enabled together with enable-api
([googleapis#3435](googleapis#3435))
([a6ff910](googleapis@a6ff910))
* **server:** Return errors instead of panicking in InitializeConfigs
([googleapis#3397](googleapis#3397))
([f48b01d](googleapis@f48b01d))
* **source/cloudhealthcare:** Validate pageURL parameter to prevent SSRF
([googleapis#3453](googleapis#3453))
([9abf47d](googleapis@9abf47d))
* **source/dataplex,source/datalineage:** Specify cloud-platform scope
for default credentials
([googleapis#3376](googleapis#3376))
([13e8c36](googleapis@13e8c36))
* **source/http:** Implement SSRF guard
([googleapis#3448](googleapis#3448))
([24d7d29](googleapis@24d7d29))
* **tool/bigquery-execute-sql:** Prevent dataset restriction bypass
([googleapis#3452](googleapis#3452))
([ca6d5e3](googleapis@ca6d5e3))
* **tool/mysql-get-query-plan:** Prevent query execution bypass and
statement injection
([googleapis#3235](googleapis#3235))
([7ed1e7b](googleapis@7ed1e7b))
* **tool/spanner-sql,tool/spanner-execute-sql:** Use read-only
annotations when readOnly is set
([googleapis#3338](googleapis#3338))
([8bde0ec](googleapis@8bde0ec))

---
This PR was generated with [Release
Please](https://github.com/googleapis/release-please). See
[documentation](https://github.com/googleapis/release-please#release-please).

---------

Co-authored-by: release-please[bot] <55107282+release-please[bot]@users.noreply.github.com>
Co-authored-by: Yuan Teoh <[email protected]> 45c0f86
github-actions Bot pushed a commit to rodineyw/mcp-toolbox that referenced this pull request Jun 19, 2026
🤖 I have created a release *beep* *boop*
---

##
[1.5.0](googleapis/mcp-toolbox@v1.4.0...v1.5.0)
(2026-06-18)

### Features

* **auth/google:** Require audience or clientId for mcpEnabled
([googleapis#3450](googleapis#3450))
([59f7b6e](googleapis@59f7b6e))
* Enable per source level flags for sql commenter
([googleapis#3465](googleapis#3465))
([ecce6b7](googleapis@ecce6b7))
* **mcp:** Add URL parameter binding for HTTP transport
([googleapis#3112](googleapis#3112))
([0cc7b37](googleapis@0cc7b37))
* **scylladb:** Adding support for ScyllaDB source and tool
([googleapis#3119](googleapis#3119))
([2dada83](googleapis@2dada83))
* **server:** Add support for toolset filtering in prebuilt CLI flag
([googleapis#3245](googleapis#3245))
([7cc4f65](googleapis@7cc4f65))
* **skills:** Generate skills offline without live source connections
([googleapis#3388](googleapis#3388))
([4c860b6](googleapis@4c860b6))
* **skills:** Tolerate missing env vars during offline skills-generate
([googleapis#3399](googleapis#3399))
([ea5d3e5](googleapis@ea5d3e5))
* **source/cloud-storage:** Restrict bucket and local path access
([googleapis#3454](googleapis#3454))
([2c3ca5d](googleapis@2c3ca5d))
* **tools/bigquery:** Add per tool query label in BigQuery jobs
([googleapis#1975](googleapis#1975))
([3f6a49f](googleapis@3f6a49f))
* **tools/dataplex:** Add tools to support metadata enrichment workflow
([googleapis#3270](googleapis#3270))
([05289aa](googleapis@05289aa))
* **tools/mysql:** Add show-query-stats and list-all-locks tools for
MySQL and Cloud SQL MySQL source
([googleapis#2954](googleapis#2954))
([a9693bd](googleapis@a9693bd))
* **tools:** Decouple tool initialization from sources
([googleapis#3355](googleapis#3355))
([32a24e3](googleapis@32a24e3))

### Bug Fixes

* **auth/dataplex:** Fix failing source with service account credentials
([googleapis#3369](googleapis#3369))
([ba4deef](googleapis@ba4deef))
* **bigquery:** Wire maximumBytesBilled into prebuilt config
([googleapis#3385](googleapis#3385))
([4abbf6e](googleapis@4abbf6e))
* Bound MCP HTTP body size
([googleapis#3216](googleapis#3216))
([d4f4342](googleapis@d4f4342))
* **config:** Add doc/line context to parse errors
([googleapis#2957](googleapis#2957))
([4b097da](googleapis@4b097da))
* Escape delimiter characters in applyEscape to prevent SQL injection
([googleapis#2811](googleapis#2811))
([932519a](googleapis@932519a))
* **npm:** Source binary version from cmd/version.txt
([googleapis#3417](googleapis#3417))
([6ffbdec](googleapis@6ffbdec))
* **prebuilt/alloydb-omni:** Require password env var explicitly
([googleapis#3398](googleapis#3398))
([fcbe3e7](googleapis@fcbe3e7))
* **server:** Fail if MCP auth is enabled together with enable-api
([googleapis#3435](googleapis#3435))
([a6ff910](googleapis@a6ff910))
* **server:** Return errors instead of panicking in InitializeConfigs
([googleapis#3397](googleapis#3397))
([f48b01d](googleapis@f48b01d))
* **source/cloudhealthcare:** Validate pageURL parameter to prevent SSRF
([googleapis#3453](googleapis#3453))
([9abf47d](googleapis@9abf47d))
* **source/dataplex,source/datalineage:** Specify cloud-platform scope
for default credentials
([googleapis#3376](googleapis#3376))
([13e8c36](googleapis@13e8c36))
* **source/http:** Implement SSRF guard
([googleapis#3448](googleapis#3448))
([24d7d29](googleapis@24d7d29))
* **tool/bigquery-execute-sql:** Prevent dataset restriction bypass
([googleapis#3452](googleapis#3452))
([ca6d5e3](googleapis@ca6d5e3))
* **tool/mysql-get-query-plan:** Prevent query execution bypass and
statement injection
([googleapis#3235](googleapis#3235))
([7ed1e7b](googleapis@7ed1e7b))
* **tool/spanner-sql,tool/spanner-execute-sql:** Use read-only
annotations when readOnly is set
([googleapis#3338](googleapis#3338))
([8bde0ec](googleapis@8bde0ec))

---
This PR was generated with [Release
Please](https://github.com/googleapis/release-please). See
[documentation](https://github.com/googleapis/release-please#release-please).

---------

Co-authored-by: release-please[bot] <55107282+release-please[bot]@users.noreply.github.com>
Co-authored-by: Yuan Teoh <[email protected]> 45c0f86
github-actions Bot pushed a commit to Jaleel-zhu/genai-toolbox that referenced this pull request Jun 19, 2026
🤖 I have created a release *beep* *boop*
---

##
[1.5.0](googleapis/mcp-toolbox@v1.4.0...v1.5.0)
(2026-06-18)

### Features

* **auth/google:** Require audience or clientId for mcpEnabled
([googleapis#3450](googleapis#3450))
([59f7b6e](googleapis@59f7b6e))
* Enable per source level flags for sql commenter
([googleapis#3465](googleapis#3465))
([ecce6b7](googleapis@ecce6b7))
* **mcp:** Add URL parameter binding for HTTP transport
([googleapis#3112](googleapis#3112))
([0cc7b37](googleapis@0cc7b37))
* **scylladb:** Adding support for ScyllaDB source and tool
([googleapis#3119](googleapis#3119))
([2dada83](googleapis@2dada83))
* **server:** Add support for toolset filtering in prebuilt CLI flag
([googleapis#3245](googleapis#3245))
([7cc4f65](googleapis@7cc4f65))
* **skills:** Generate skills offline without live source connections
([googleapis#3388](googleapis#3388))
([4c860b6](googleapis@4c860b6))
* **skills:** Tolerate missing env vars during offline skills-generate
([googleapis#3399](googleapis#3399))
([ea5d3e5](googleapis@ea5d3e5))
* **source/cloud-storage:** Restrict bucket and local path access
([googleapis#3454](googleapis#3454))
([2c3ca5d](googleapis@2c3ca5d))
* **tools/bigquery:** Add per tool query label in BigQuery jobs
([googleapis#1975](googleapis#1975))
([3f6a49f](googleapis@3f6a49f))
* **tools/dataplex:** Add tools to support metadata enrichment workflow
([googleapis#3270](googleapis#3270))
([05289aa](googleapis@05289aa))
* **tools/mysql:** Add show-query-stats and list-all-locks tools for
MySQL and Cloud SQL MySQL source
([googleapis#2954](googleapis#2954))
([a9693bd](googleapis@a9693bd))
* **tools:** Decouple tool initialization from sources
([googleapis#3355](googleapis#3355))
([32a24e3](googleapis@32a24e3))

### Bug Fixes

* **auth/dataplex:** Fix failing source with service account credentials
([googleapis#3369](googleapis#3369))
([ba4deef](googleapis@ba4deef))
* **bigquery:** Wire maximumBytesBilled into prebuilt config
([googleapis#3385](googleapis#3385))
([4abbf6e](googleapis@4abbf6e))
* Bound MCP HTTP body size
([googleapis#3216](googleapis#3216))
([d4f4342](googleapis@d4f4342))
* **config:** Add doc/line context to parse errors
([googleapis#2957](googleapis#2957))
([4b097da](googleapis@4b097da))
* Escape delimiter characters in applyEscape to prevent SQL injection
([googleapis#2811](googleapis#2811))
([932519a](googleapis@932519a))
* **npm:** Source binary version from cmd/version.txt
([googleapis#3417](googleapis#3417))
([6ffbdec](googleapis@6ffbdec))
* **prebuilt/alloydb-omni:** Require password env var explicitly
([googleapis#3398](googleapis#3398))
([fcbe3e7](googleapis@fcbe3e7))
* **server:** Fail if MCP auth is enabled together with enable-api
([googleapis#3435](googleapis#3435))
([a6ff910](googleapis@a6ff910))
* **server:** Return errors instead of panicking in InitializeConfigs
([googleapis#3397](googleapis#3397))
([f48b01d](googleapis@f48b01d))
* **source/cloudhealthcare:** Validate pageURL parameter to prevent SSRF
([googleapis#3453](googleapis#3453))
([9abf47d](googleapis@9abf47d))
* **source/dataplex,source/datalineage:** Specify cloud-platform scope
for default credentials
([googleapis#3376](googleapis#3376))
([13e8c36](googleapis@13e8c36))
* **source/http:** Implement SSRF guard
([googleapis#3448](googleapis#3448))
([24d7d29](googleapis@24d7d29))
* **tool/bigquery-execute-sql:** Prevent dataset restriction bypass
([googleapis#3452](googleapis#3452))
([ca6d5e3](googleapis@ca6d5e3))
* **tool/mysql-get-query-plan:** Prevent query execution bypass and
statement injection
([googleapis#3235](googleapis#3235))
([7ed1e7b](googleapis@7ed1e7b))
* **tool/spanner-sql,tool/spanner-execute-sql:** Use read-only
annotations when readOnly is set
([googleapis#3338](googleapis#3338))
([8bde0ec](googleapis@8bde0ec))

---
This PR was generated with [Release
Please](https://github.com/googleapis/release-please). See
[documentation](https://github.com/googleapis/release-please#release-please).

---------

Co-authored-by: release-please[bot] <55107282+release-please[bot]@users.noreply.github.com>
Co-authored-by: Yuan Teoh <[email protected]> 45c0f86
github-actions Bot pushed a commit to pepe57/genai-toolbox that referenced this pull request Jun 19, 2026
🤖 I have created a release *beep* *boop*
---

##
[1.5.0](googleapis/mcp-toolbox@v1.4.0...v1.5.0)
(2026-06-18)

### Features

* **auth/google:** Require audience or clientId for mcpEnabled
([googleapis#3450](googleapis#3450))
([59f7b6e](googleapis@59f7b6e))
* Enable per source level flags for sql commenter
([googleapis#3465](googleapis#3465))
([ecce6b7](googleapis@ecce6b7))
* **mcp:** Add URL parameter binding for HTTP transport
([googleapis#3112](googleapis#3112))
([0cc7b37](googleapis@0cc7b37))
* **scylladb:** Adding support for ScyllaDB source and tool
([googleapis#3119](googleapis#3119))
([2dada83](googleapis@2dada83))
* **server:** Add support for toolset filtering in prebuilt CLI flag
([googleapis#3245](googleapis#3245))
([7cc4f65](googleapis@7cc4f65))
* **skills:** Generate skills offline without live source connections
([googleapis#3388](googleapis#3388))
([4c860b6](googleapis@4c860b6))
* **skills:** Tolerate missing env vars during offline skills-generate
([googleapis#3399](googleapis#3399))
([ea5d3e5](googleapis@ea5d3e5))
* **source/cloud-storage:** Restrict bucket and local path access
([googleapis#3454](googleapis#3454))
([2c3ca5d](googleapis@2c3ca5d))
* **tools/bigquery:** Add per tool query label in BigQuery jobs
([googleapis#1975](googleapis#1975))
([3f6a49f](googleapis@3f6a49f))
* **tools/dataplex:** Add tools to support metadata enrichment workflow
([googleapis#3270](googleapis#3270))
([05289aa](googleapis@05289aa))
* **tools/mysql:** Add show-query-stats and list-all-locks tools for
MySQL and Cloud SQL MySQL source
([googleapis#2954](googleapis#2954))
([a9693bd](googleapis@a9693bd))
* **tools:** Decouple tool initialization from sources
([googleapis#3355](googleapis#3355))
([32a24e3](googleapis@32a24e3))

### Bug Fixes

* **auth/dataplex:** Fix failing source with service account credentials
([googleapis#3369](googleapis#3369))
([ba4deef](googleapis@ba4deef))
* **bigquery:** Wire maximumBytesBilled into prebuilt config
([googleapis#3385](googleapis#3385))
([4abbf6e](googleapis@4abbf6e))
* Bound MCP HTTP body size
([googleapis#3216](googleapis#3216))
([d4f4342](googleapis@d4f4342))
* **config:** Add doc/line context to parse errors
([googleapis#2957](googleapis#2957))
([4b097da](googleapis@4b097da))
* Escape delimiter characters in applyEscape to prevent SQL injection
([googleapis#2811](googleapis#2811))
([932519a](googleapis@932519a))
* **npm:** Source binary version from cmd/version.txt
([googleapis#3417](googleapis#3417))
([6ffbdec](googleapis@6ffbdec))
* **prebuilt/alloydb-omni:** Require password env var explicitly
([googleapis#3398](googleapis#3398))
([fcbe3e7](googleapis@fcbe3e7))
* **server:** Fail if MCP auth is enabled together with enable-api
([googleapis#3435](googleapis#3435))
([a6ff910](googleapis@a6ff910))
* **server:** Return errors instead of panicking in InitializeConfigs
([googleapis#3397](googleapis#3397))
([f48b01d](googleapis@f48b01d))
* **source/cloudhealthcare:** Validate pageURL parameter to prevent SSRF
([googleapis#3453](googleapis#3453))
([9abf47d](googleapis@9abf47d))
* **source/dataplex,source/datalineage:** Specify cloud-platform scope
for default credentials
([googleapis#3376](googleapis#3376))
([13e8c36](googleapis@13e8c36))
* **source/http:** Implement SSRF guard
([googleapis#3448](googleapis#3448))
([24d7d29](googleapis@24d7d29))
* **tool/bigquery-execute-sql:** Prevent dataset restriction bypass
([googleapis#3452](googleapis#3452))
([ca6d5e3](googleapis@ca6d5e3))
* **tool/mysql-get-query-plan:** Prevent query execution bypass and
statement injection
([googleapis#3235](googleapis#3235))
([7ed1e7b](googleapis@7ed1e7b))
* **tool/spanner-sql,tool/spanner-execute-sql:** Use read-only
annotations when readOnly is set
([googleapis#3338](googleapis#3338))
([8bde0ec](googleapis@8bde0ec))

---
This PR was generated with [Release
Please](https://github.com/googleapis/release-please). See
[documentation](https://github.com/googleapis/release-please#release-please).

---------

Co-authored-by: release-please[bot] <55107282+release-please[bot]@users.noreply.github.com>
Co-authored-by: Yuan Teoh <[email protected]> 45c0f86
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Security: Unbounded request body on MCP HTTP handler enables memory exhaustion DoS

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