Connect your agent
AdvisoriesCriticalCheck your lockfilePluginHow it worksPricing Connect your agent

Advisory record · GHSA-rxj3-rrwm-pj4r

Roundcube Webmail: Unsafe deserialization in the redis/memcache session handler

CVSS 3.7 LowEPSS 0.0048 · 42nd percentile

Published by the GitHub Advisory Database at 3 Apr 2026, 06:31 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
roundcube/roundcubemailPackagist>=1.7-beta, <1.7-rc51.7-rc5
Identifiers
GHSA-rxj3-rrwm-pj4r · CVE-2026-35537 · PKSA-wjqw-j5qy-sdfr
Weakness (CWE)
CWE-502
Tags
Published
3 Apr 2026
Updated
14 Apr 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Roundcube Webmail versions before 1.5.14 and 1.6.14, and 1.7-beta through 1.7-rc4, are affected when the redis or memcache session handler is used. An unauthenticated attacker who supplies crafted session data can cause arbitrary file writes through unsafe deserialization. Upgrade to 1.5.14, 1.6.14, or 1.7-rc5, depending on your release branch.

Written 3 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
3.7 Low 3.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N CNA (mitre)
  • CISA KEV Not listed.
  • EPSS 0.0048, the 42nd percentile, on 11 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:25 UTC First seen by agentprime
  2. 31 Oct 2026, 14:25 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.