CVE-2026-35537

A flaw was found in Roundcube Webmail. Unauthenticated attackers can exploit an unsafe deserialization vulnerability in the redis/memcache session handler. This allows for arbitrary file write operations by crafting malicious session data. The primary impact is the ability to write files to the...

CVE-2026-35537

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...

PT-2026-29975

Name of the Vulnerable Software and Affected Versions Roundcube Webmail versions prior to 1.5.14 and prior to 1.6.14 Description An issue exists in Roundcube Webmail related to unsafe deserialization within the redis/memcache session handler. This could allow unauthenticated attackers to perform...