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chore(deps): bump soupsieve to 4.0.0 in src/fetch/uv.lock (3 advisories) #5546

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Description

@github-actions

Filed automatically from 3 open Dependabot alerts by the daily alert sweep (#4874). The fix is written by hand against v2/main.

Package soupsieve (pip)
Manifest src/fetch/uv.lock
Vulnerable on v2/main 2.10
Bump to 4.0.0: the lowest listed patched version that no range below covers
Scope runtime
Highest severity high

Advisories

GHSA CVE Severity Vulnerable range Fixed in Summary
GHSA-6655-6qjp-jx7x CVE-2026-126191 high <= 2.10 3.0.2 Soup Sieve: Exponential ReDoS in selector compilation via \9-run in CSS_ESCAPES/IDENTIFIER
GHSA-7g44-g9rc-x53w CVE-2026-126193 medium >= 0.4, <= 2.10 3.0.2 Soup Sieve: Uncontrolled recursion in CSS parser lets nested pseudo-class selectors exhaust the Python call stack
GHSA-mmhr-3c5m-f64f CVE-2026-126190 high < 4.0.0 4.0.0 Soup Sieve: Polynomial-time denial of service in the descendant combinator

Fix

Run uv lock --upgrade-package soupsieve in src/fetch and commit the refreshed uv.lock. soupsieve is transitive here, so no declared range names it. If the package that pulls it in caps it below 4.0.0, add constraint-dependencies = ["soupsieve>=4.0.0"] under [tool.uv] in src/fetch/pyproject.toml instead.

Then verify before opening the PR: every locked copy must be outside every range in the Advisories table. node scripts/dependabot-alerts.mjs --dry-run against the branch should report this exposure cleared.

Vulnerable copy Version
soupsieve 2.10

Note

The GHSA, CVE, severity, range and summary are the advisory's own, as Dependabot reports them. What this sweep verified against v2/main is the installed versions and whether each advisory's range still matches them: GitHub computes alerts from the default branch, so an alert is filed only after that re-check.

Activity

  1. added this to the v2.5.0 milestone on Nov 13, 2026
  2. added
    server-fetchReference implementation for the Fetch MCP server - src/fetch
    dependenciesPull requests that update a dependency file
    choreMaintenance: deps, build tooling, CI, cleanup — no user-facing behavior change
    on Nov 13, 2026
  3. github-actions commented on Nov 14, 2026

    @github-actions
    ContributorAuthor

    2 new Dependabot advisories for soupsieve. The bump this issue asks for is now to 4.0.0, which clears them along with the rest.

    GHSA Severity Summary
    GHSA-6655-6qjp-jx7x high Soup Sieve: Exponential ReDoS in selector compilation via \9-run in CSS_ESCAPES/IDENTIFIER
    GHSA-7g44-g9rc-x53w medium Soup Sieve: Uncontrolled recursion in CSS parser lets nested pseudo-class selectors exhaust the Python call stack
  4. changed the title [-]chore(deps): bump `soupsieve` to `4.0.0` in `src/fetch/uv.lock` (1 advisory)[/-] [+]chore(deps): bump `soupsieve` to `4.0.0` in `src/fetch/uv.lock` (3 advisories)[/+] on Nov 14, 2026
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    choreMaintenance: deps, build tooling, CI, cleanup — no user-facing behavior changedependenciesPull requests that update a dependency fileserver-fetchReference implementation for the Fetch MCP server - src/fetchv2

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