CVE-2026-35537

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.

PUBLISHED Reserved 2026-04-03 | Published 2026-04-03 | Updated 2026-04-11 | Assigner mitre

Problem types

CWE-502 Deserialization of Untrusted Data

Product status

References

www.openwall.com/lists/oss-security/2026/04/11/6

roundcube.net/...3/18/security-updates-1.7-rc5-1.6.14-1.5.14

github.com/roundcube/roundcubemail/releases/tag/1.7-rc5

github.com/...ommit/6d586cfa4d8a31f7957f7a445aaedd52592a0e74

github.com/roundcube/roundcubemail/releases/tag/1.6.14

github.com/...ommit/a4ead994d2f0ea92e4a1603196a197e0d5df1620

github.com/roundcube/roundcubemail/releases/tag/1.5.14

github.com/...l/commit/618c5428edc69fb088e7ac6c89e506dd39df3

cve.org (CVE-2026-35537)

nvd.nist.gov (CVE-2026-35537)

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