GitHub Advisoryadvisory · Packagist
GHSA-rxj3-rrwm-pj4r Roundcube Webmail: Unsafe deserialization in the redis/memcache session handler
LOW
Official page ↗
- Aliases
- CVE-2026-35537
- Ecosystem
- Packagist
- Packages
- roundcube/roundcubemail
- Severity
- Low
- CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
- Weaknesses
- CWE-502
- Reviewed
- 2026-04-04
Affected packages
• Packagist roundcube/roundcubemail: >= 1.7-beta, < 1.7-rc5 → fixed in 1.7-rc5
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.
Related
Alias · CVE (1)
- CVE-2026-35537 An issue was discovered in Roundcube Webmail before 1.5.14 and 1.6.14. vulnerability
Weakness · CWE (1)
- CWE-502 Deserialization of Untrusted Data weakness
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-35537 advisory
- https://github.com/roundcube/roundcubemail/commit/618c5428edc69fb088e7ac6c89e506dd39df3 web
- https://github.com/roundcube/roundcubemail/commit/6d586cfa4d8a31f7957f7a445aaedd52592a0e74 web
- https://github.com/roundcube/roundcubemail/commit/a4ead994d2f0ea92e4a1603196a197e0d5df1620 web
- https://github.com/roundcube/roundcubemail package
- https://github.com/roundcube/roundcubemail/releases/tag/1.5.14 web
- https://github.com/roundcube/roundcubemail/releases/tag/1.6.14 web
- https://github.com/roundcube/roundcubemail/releases/tag/1.7-rc5 web
- https://roundcube.net/news/2026/03/18/security-updates-1.7-rc5-1.6.14-1.5.14 web
- http://www.openwall.com/lists/oss-security/2026/04/11/6 web