CVEvulnerability
CVE-2026-114724
8.1 HIGH
Official page ↗
- Status
- Analyzed
- Published
- 2026-10-22
- Last modified
- 2026-10-29
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.4 HIGH — CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- CVSS 3.1 ([email protected])
- 8.1 HIGH — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-502
Description
Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 contains an object injection primitive in rcube_session::unserialize(). A session key prefixed with “!” was treated as having no value, and the reconstructed serialized string was emitted with a key but no corresponding value, desynchronizing the remainder of the input so that following session data was interpreted as a serialized value. This yields a PHP object injection primitive for an attacker able to influence stored session data. Upstream fixed this in the commit “Fix object injection primitive in rcube_session::unserialize() via “!”-prefixed session keys”, which rejects such keys.
Affected configurations
• roundcube webmail (>= 1.6.0 < 1.6.20)
• roundcube webmail (>= 1.7.0 < 1.7.5)
Related
Weakness · CWE (1)
- CWE-502 Deserialization of Untrusted Data weakness
References
- https://bugs.debian.org/1151279 Third Party Advisory, Mailing List
- https://github.com/roundcube/roundcubemail/commit/833770d3d3c35cfde74cc2614d368f25a75b6f99 Patch
- https://github.com/roundcube/roundcubemail/commit/93284f3f0e13f99af37fc3b81861e142eea8a922 Patch
- https://github.com/roundcube/roundcubemail/releases/tag/1.6.20 Release Notes
- https://github.com/roundcube/roundcubemail/releases/tag/1.7.5 Release Notes
- https://roundcube.net/news/2026/10/19/security-updates-1.6.20-and-1.7.5 Issue Tracking