CVE-2026-35537

—

CVSS 3.1

7.5 high

EPSS

<1%p40

Published

Apr 3, 2026 (Apr 3, 2026)

Modified

Jul 24, 2026

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.

Vendors: roundcube
Products: webmail
Weakness: CWE-502
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

NVD CVE.org GitHub PoCs EPSS (0.5%)

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