Findings

CVE-2026-35537

An issue was discovered in Roundcube Webmail before 1.5.14 and 1.6.14.

Published Apr 3, 2026 · updated Jul 24, 2026 · roundcube webmail

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.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Apr 3, 2026 · NIST NVD

    Detected

    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.

  2. Jul 24, 2026 · NIST NVD

    Updated

    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.

Affected

  • cpe roundcube/webmailversion unspecified

Sources

  • CVE.orgVulnerability recordCVE-2026-35537

    Official CVE identifier

    cve.org
  • NIST NVDVulnerability recordCVE-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.

    nvd.nist.gov

References