roundcube/roundcubemail · Security
Roundcube Webmail: Unsafe deserialization in the redis/memcache session handler
- GHSA ID
- GHSA-rxj3-rrwm-pj4r
- CVE ID
- CVE-2026-35537
- Severity
- low
- Published
- Updated
- CVSS
- 3.7 · CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
- CVSS v3
- 3.7 · CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
Description
An issue was discovered in Roundcube Webmail before 1.5.14 and 1.6.14. Unsafe deserialization in the redis/memcache session handler may lead to arbitrary file write operations by unauthenticated attackers via crafted session data.
CWEs
- CWE-502 · Deserialization of Untrusted Data
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-35537 ↗
- https://github.com/roundcube/roundcubemail/commit/618c5428edc69fb088e7ac6c89e506dd39df3 ↗
- https://github.com/roundcube/roundcubemail/commit/6d586cfa4d8a31f7957f7a445aaedd52592a0e74 ↗
- https://github.com/roundcube/roundcubemail/commit/a4ead994d2f0ea92e4a1603196a197e0d5df1620 ↗
- https://github.com/roundcube/roundcubemail/releases/tag/1.5.14 ↗
- https://github.com/roundcube/roundcubemail/releases/tag/1.6.14 ↗
- https://github.com/roundcube/roundcubemail/releases/tag/1.7-rc5 ↗
- https://roundcube.net/news/2026/03/18/security-updates-1.7-rc5-1.6.14-1.5.14 ↗
- http://www.openwall.com/lists/oss-security/2026/04/11/6 ↗
- https://github.com/advisories/GHSA-rxj3-rrwm-pj4r ↗