This is a security update to the version 1.7 of Roundcube Webmail.
It provides fixes to recently reported security vulnerabilities:

• Add basic validation for content proxied by the css proxy
• Fix SSRF bypass via specific local address URLs using 100.64.0.0/10 and fe80::/10 nets, reported by Dmytro Ivanenko
• Fix SSRF filter bypass via various forms of nip.io/sslip.io hostnames evading is_local_url() check, reported by Milan Hoppe
• Fix remote content blocking bypass via unclosed url() in a FuncIRI attribute, reported by Milan Hoppe
• Fix LDAP filter injection via unescaped %u/%fu/%d substitution into the search_filter, reported by Milan Hoppe
• Fix arbitrary Sieve script injection via a filter rule name bypassing managesieve_disabled_actions, reported by Milan Hoppe
• Fix RCE via cmd_learn driver of markasjunk plugin, reported by nept1337
• Fix IMAP command injection via mail search and LITERAL+ byte-count desynchronization, reported by Zach Hanley of Horizon3.ai
• Fix password's modoboa driver leak of an authentication token to a user-controlled host, reported by meifukun
• Fix stored XSS in "Add to address book" action, reported by Paulos Yibelo from pwn.ai
• Fix HTML/CSS sanitization bypass via SVG animate by attribute, reported by vectrain

This version is considered stable and we recommend to update all productive installations of Roundcube with it. Please do backup your data before updating!

CHANGELOG

• OAuth: Don't log an error when a refreshed token's TTL is below refresh_interval (#10213)
• Fix out-of-bounds string reads on truncated compressed-RTF in the TNEF decoder (#10269)
• Fix bug where searching in example_addressbook plugin was reporting zero results despite matches (#9022)
• Fix vCard import mis-detecting folded continuation lines as BEGIN/END:VCARD (#9593)
• Fix bug where the php session driver practically disabled session.lazy_write optimization (#9885, #10248)
• Fix bug where dates could get displayed shifted back one day in some places (#9403)
• Fix regression where it wasn't possible to hide a skin logo image anymore (#10254)
• Fix decoding of multi-segment RFC2231 extended attachment filenames (#10268)
• Fix vCard import silently dropping properties with a non-item group prefix (#10271)
• Fix so REQUEST_URI is used as a fallback if PATH_INFO is empty in static.php (#10181)
• Security: Add basic validation for content proxied by the css proxy
• Security: Fix SSRF bypass via specific local address URLs using 100.64.0.0/10 and fe80::/10 nets
• Security: Fix SSRF filter bypass via various forms of nip.io/sslip.io hostnames evading is_local_url() check
• Security: Fix remote content blocking bypass via unclosed url() in a FuncIRI attribute
• Security: Fix LDAP filter injection via unescaped %u/%fu/%d substitution into the search_filter
• Security: Fix arbitrary Sieve script injection via a filter rule name bypassing managesieve_disabled_actions
• Security: Fix RCE via cmd_learn driver of markasjunk plugin
• Security: Fix IMAP command injection via mail search and LITERAL+ byte-count desynchronization
• Security: Fix password's modoboa driver leak of an authentication token to a user-controlled host
• Security: Fix stored XSS in "Add to address book" action
• Security: Fix HTML/CSS sanitization bypass via SVG animate by attribute.

This is a security update to the version 1.6 of Roundcube Webmail.
It provides fixes to recently reported security vulnerabilities:

• Add basic validation for content proxied by the css proxy
• Fix SSRF bypass via specific local address URLs using 100.64.0.0/10 and fe80::/10 nets, reported by Dmytro Ivanenko
• Fix SSRF filter bypass via various forms of nip.io/sslip.io hostnames evading is_local_url() check, reported by Milan Hoppe
• Fix remote content blocking bypass via unclosed url() in a FuncIRI attribute, reported by Milan Hoppe
• Fix LDAP filter injection via unescaped %u/%fu/%d substitution into the search_filter, reported by Milan Hoppe
• Fix arbitrary Sieve script injection via a filter rule name bypassing managesieve_disabled_actions, reported by Milan Hoppe
• Fix RCE via cmd_learn driver of markasjunk plugin, reported by nept1337
• Fix IMAP command injection via mail search and LITERAL+ byte-count desynchronization, reported by Zach Hanley of Horizon3.ai
• Fix password's modoboa driver leak of an authentication token to a user-controlled host, reported by meifukun
• Fix stored XSS in "Add to address book" action, reported by Paulos Yibelo from pwn.ai
• Fix HTML/CSS sanitization bypass via SVG animate by attribute, reported by vectrain

This version is considered stable and we recommend to update all productive installations of Roundcube with it. Please do backup your data before updating!

CHANGELOG

• Password: Fix fatal error "Class 'Zxcvbn' not found" (#10274)
• Fix out-of-bounds string reads on truncated compressed-RTF in the TNEF decoder (#10269)
• Security: Add basic validation for content proxied by the css proxy
• Security: Fix SSRF bypass via specific local address URLs using 100.64.0.0/10 and fe80::/10 nets
• Security: Fix SSRF filter bypass via various forms of nip.io/sslip.io hostnames evading is_local_url() check
• Security: Fix remote content blocking bypass via unclosed url() in a FuncIRI attribute
• Security: Fix LDAP filter injection via unescaped %u/%fu/%d substitution into the search_filter
• Security: Fix arbitrary Sieve script injection via a filter rule name bypassing managesieve_disabled_actions
• Security: Fix RCE via cmd_learn driver of markasjunk plugin
• Security: Fix IMAP command injection via mail search and LITERAL+ byte-count desynchronization
• Security: Fix password's modoboa driver leak of an authentication token to a user-controlled host
• Security: Fix stored XSS in "Add to address book" action
• Security: Fix HTML/CSS sanitization bypass via SVG animate by attribute

This is a security update to the version 1.7 of Roundcube Webmail.
It provides fixes to recently reported security vulnerabilities:

• Fix an infinite loop in TNEF (winmail.dat) decoder (#10193), reported by stafra.
• Fix various vulnerabilities in the password plugin using session-injected username, reported by Glendaenri and peppersghost.
• Fix stored XSS via unescaped attachment MIME type on the attachment-validation warning page [CVE-2026-54432], reported by Bohdan Kurinnoy, Samsung R&D Instit
• Fix SSRF bypass via specific local address URLs - two new cases, reported by Leenear.
• Fix zero-click stored XSS in plain-text rendering [CVE-2026-54433], reported by Bohdan Kurinnoy, Samsung R&D Institute Ukraine (SRUKR).
• Fix DoS via crafted compressed-RTF size in the TNEF (winmail.dat) file, reported by h0rk1p.

This version is considered stable and we recommend to update all productive installations of Roundcube with it. Please do backup your data before updating!

CHANGELOG

• Add HEAD request handler to the static.php
• Fix so the oauth_password_claim claim is retrieved via token or userinfo request (#9631)
• Fix bug where static.php would return a 416 error on a specific Range request (#10194)
• Fix bug where configured skin logo wasn't loaded via static.php resulting in 404 error (#10191)
• Fix bug where installto.sh would fail if public_html folder does not exist in the target directory (#10202)
• Revert "Prefer 8bit over quoted-printable for HTML parts, when force_7bit is disabled (#8477)" (#10198)
• Fix incorrect unfolding of folded lines when importing vCard 2.1 contacts (#9647)
• Fix bug where Imagick could leave large temporary files on failure (#10230)
• Fix bug where redis/memcache session could have been updated more often than needed
• Fix support for untyped tokens in OIDC backchannel logout, require unset nonce (#10097)
• Security: Fix an infinite loop in TNEF (winmail.dat) decoder (#10193)
• Security: Fix various vulnerabilities in the password plugin using session-injected username
• Security: Fix stored XSS via unescaped attachment MIME type on the attachment-validation warning page [CVE-2026-54432]
• Security: Fix SSRF bypass via specific local address URLs - two new cases
• Security: Fix zero-click stored XSS in plain-text rendering [CVE-2026-54433]
• Security: Fix DoS via crafted compressed-RTF size in the TNEF (winmail.dat) file

This is a security update to the LTS version 1.6 of Roundcube Webmail.
It provides fixes to recently reported security vulnerabilities:

• Fix an infinite loop in TNEF (winmail.dat) decoder (#10193), reported by stafra.
• Fix various vulnerabilities in the password plugin using session-injected username, reported by Glendaenri and peppersghost.
• Fix stored XSS via unescaped attachment MIME type on the attachment-validation warning page [CVE-2026-54432], reported by Bohdan Kurinnoy, Samsung R&D Instit
• Fix SSRF bypass via specific local address URLs - two new cases, reported by Leenear.
• Fix zero-click stored XSS in plain-text rendering [CVE-2026-54433], reported by Bohdan Kurinnoy, Samsung R&D Institute Ukraine (SRUKR).
• Fix DoS via crafted compressed-RTF size in the TNEF (winmail.dat) file, reported by h0rk1p.

This version is considered stable and we recommend to update all productive installations of Roundcube 1.6.x with it. Please do backup your data before updating!

CHANGELOG

• Enigma: Support automatic public key lookup (import) using HKP v1 protocol (#5314)
• Enigma: Kolab WOAT Support (#8626)
• Security: Fix an infinite loop in TNEF (winmail.dat) decoder (#10193)
• Security: Fix various vulnerabilities in the password plugin using session-injected username
• Security: Fix stored XSS via unescaped attachment MIME type on the attachment-validation warning page [CVE-2026-54432]
• Security: Fix SSRF bypass via specific local address URLs - two new cases
• Security: Fix zero-click stored XSS in plain-text rendering [CVE-2026-54433]
• Security: Fix DoS via crafted compressed-RTF size in the TNEF (winmail.dat) file

This is a security update to the stable version 1.7 of Roundcube Webmail.
It provides fixes to recently reported security vulnerabilities:

• Fix stored XSS/HTML/CSS injection in subject field of the draft restore dialog, reported by Anand Jogawade (zazy)
• Fix CSS injection bypass in HTML sanitizer via SVG <animate attributeName="style">, reported by wooseokdotkim
• Fix pre-auth SQL injection in virtuser_query plugin via preg_replace backslash escape bypass, reported by skull
• Fix SSRF bypass via specific local address URLs
• Fix local/private URL fetch bypass when remote resources were not allowed, reported by Orange Cyberdefense Vulnerability Disclosure Team
• Fix bypass of remote image blocking via CSS var(), reported by Geame
• Fix pre-auth arbitrary file delete via redis/memcache session poisoning bypass, reported by valent1
• Fix code injection vulnerability - remove support for code evaluation in LDAP autovalues option, reported by Glendaenri

This version is considered stable and we recommend to update all productive installations of Roundcube 1.7.x with it. Please do backup your data before updating!

CHANGELOG

• Enigma: Support automatic public key lookup (import) using HKP v1 protocol (#5314)
• Managesieve: Fix error when a mail message contains duplicate List-Id header (#10186)
• Clarified Elastic installation instructions (#10163)
• Added HTMLFormElement.requestSubmit() polyfill for older browsers (#10179)
• Fix so "has:attachment" search uses $HasAttachment/$HasNoAttachment keywords (#10168)
• Fix potential too long value in IMAP ID command (#10136)
• Fix redis/memcache disconnection in rcube::sleep() (#10127)
• Fix so static resources, e.g. skin_logo can be put inside the public_html directory (#10160)
• Fix so REQUEST_URI is used as a fallback if PATH_INFO is not set in static.php (#10181)
• Fix assets_path feature and remove dependency on PATH_INFO (#10185)
• Fix MySQL upgrade on MySQL < 8.0 and MariaDB < 10.5.3 (#10188)
• Security: Fix stored XSS/HTML/CSS injection in subject field of the draft restore dialog
• Security: Fix CSS injection bypass in HTML sanitizer via SVG <animate attributeName="style">
• Security: Fix pre-auth SQL injection in virtuser_query plugin via preg_replace backslash escape bypass
• Security: Fix SSRF bypass via specific local address URLs
• Security: Fix bypass of remote image blocking via CSS var()
• Security: Fix local/private URL fetch bypass when remote resources were not allowed
• Security: Fix pre-auth arbitrary file delete via redis/memcache session poisoning bypass
• Security: Fix code injection vulnerability - remove support for code evaluation in LDAP autovalues option

This is a security update to the LTS version 1.6 of Roundcube Webmail.
It provides fixes to recently reported security vulnerabilities:

• Fix stored XSS/HTML/CSS injection in subject field of the draft restore dialog, reported by Anand Jogawade (zazy)
• Fix CSS injection bypass in HTML sanitizer via SVG <animate attributeName="style">, reported by wooseokdotkim
• Fix pre-auth SQL injection in virtuser_query plugin via preg_replace backslash escape bypass, reported by skull
• Fix SSRF bypass via specific local address URLs
• Fix local/private URL fetch bypass when remote resources were not allowed, reported by Orange Cyberdefense Vulnerability Disclosure Team
• Fix bypass of remote image blocking via CSS var(), reported by Geame
• Fix pre-auth arbitrary file delete via redis/memcache session poisoning bypass, reported by valent1
• Fix code injection vulnerability - remove support for code evaluation in LDAP autovalues option, reported by Glendaenri

This version is considered stable and we recommend to update all productive installations of Roundcube 1.6.x with it. Please do backup your data before updating!

CHANGELOG

• Fix potential too long value in IMAP ID command (#10136)
• Security: Fix stored XSS/HTML/CSS injection in subject field of the draft restore dialog
• Security: Fix CSS injection bypass in HTML sanitizer via SVG <animate attributeName="style">
• Security: Fix pre-auth SQL injection in virtuser_query plugin via preg_replace backslash escape bypass
• Security: Fix SSRF bypass via specific local address URLs
• Security: Fix bypass of remote image blocking via CSS var()
• Security: Fix local/private URL fetch bypass when remote resources were not allowed
• Security: Fix pre-auth arbitrary file delete via redis/memcache session poisoning bypass
• Security: Fix code injection vulnerability - remove support for code evaluation in LDAP autovalues option

This is the stable release of the next major version 1.7 of Roundcube Webmail.

After almost four years of development we introduce a few breaking changes, some new features, and bring support for recent PHP versions. With automated code style and quality checks, removed code bloat and updated dependencies, we hope for even more codebase quality.

Some noteworthy changes are:

• Mandatory public_html/ entry-point for HTTP servers, protecting all installations better.
• Improved OAuth2/OIDC support (e.g. support for OIDC discovery, OIDC logout).
• Markdown mail rendering and composing.
• A quick actions mouse-over menu on the messages list.
• Advanced mail search syntax.

Breaking Changes

• Dropped support for PHP < 8.1.
• Dropped support for Internet Explorer.
• Dropped support for MS SQL Server and Oracle.
• public_html/ entry-point made mandatory, all static resources are served via public_html/static.php.
• Removed apc cache driver (replaced by apcu cache driver).
• Changed smtp_log option default value to false.
• Removed contact_search_name option in favor of contactlist_name_template.
• Replaced session property changed by expires_at.
• Removed the (insecure) virtualmin password driver.

This release is considered stable and we encourage you to update your productive installations after carefully testing the upgrade scenario. Download it from roundcube.net.

With the release of Roundcube 1.7.0, the previous stable release branch 1.6.x changes into an LTS (low maintenance) mode which means it will only receive important security updates. The 1.5.x series is no longer supported and maintained.

And don't forget to backup your data before installing it!

Changelog since 1.7-rc6

• Bump OpenPGPjs version to 6.3.0
• Allow cidr (subnets) in proxy_whitelist (#7103)
• Zipdownload: Fix message date time zone in mbox export (#10147)

This is a security update to the stable version 1.6 of Roundcube Webmail.
It provides fixes to some regressions introduced in the previous release as well a recently reported security vulnerability:

• SVG Animate FUNCIRI Attribute Bypass — Remote Image Loading via fill/filter/stroke, reported by class_nzm.

This version is considered stable and we recommend to update all productive installations of Roundcube 1.6.x with it. Please do backup your data before updating!

CHANGELOG

• Fix regression where mail search would fail on non-ascii search criteria (#10121)
• Fix regression where some data url images could get ignored/lost (#10128)
• Fix SVG Animate FUNCIRI Attribute Bypass — Remote Image Loading via fill/filter/stroke

This is a security update to the stable version 1.5 of Roundcube Webmail.
It provides fixes to some regressions introduced in the previous release as well a recently reported security vulnerability:

• SVG Animate FUNCIRI Attribute Bypass — Remote Image Loading via fill/filter/stroke, reported by class_nzm.

This version is considered stable and we recommend to update all productive installations of Roundcube 1.5.x with it. Please do backup your data before updating!

CHANGELOG

• Fix so distribution packages (and composer.json) don't include development dependencies
• Fix regression where mail search would fail on non-ascii search criteria (#10121)
• Fix regression where some data url images could get ignored/lost (#10128)
• Fix SVG Animate FUNCIRI Attribute Bypass — Remote Image Loading via fill/filter/stroke

This is hopefully the last release candidate for the next major version 1.7 of Roundcube Webmail.
It provides a fix to recently reported security vulnerability:

• SVG Animate FUNCIRI Attribute Bypass — Remote Image Loading via fill/filter/stroke, reported by class_nzm.

We believe it is production ready, but we recommend to test it on a separate environment.

Migrate existing configs with either the installto.sh or the update.sh scripts.

And don't forget to backup your data before installing it!

CHANGELOG

• Added support for arrays in smtp_user and smtp_pass config options (#10083)
• Added system health checker CLI script (#10106)
• Stricter recognition of an Ajax request (#10118)
• Password: Added Stalwart driver (#10114)
• Fix regression where some data url images could get ignored/lost (#10128)
• Fix SVG Animate FUNCIRI Attribute Bypass — Remote Image Loading via fill/filter/stroke