CVEvulnerability

CVE-2026-9597

5.4 MEDIUM Published 2026-07-13 Modified 2026-07-13 Official page ↗
Status
Analyzed
Published
2026-07-13
Last modified
2026-07-13
Assigner
[email protected]
CVSS 3.1 ([email protected])
5.4 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Weaknesses
CWE-305

Description

Mattermost versions 11.7.x <= 11.7.2, 11.6.x <= 11.6.4 fail to verify whether a guest account is deactivated before creating a session in the magic-link token login path, which allows a deactivated guest user to obtain a fully functional session via a magic-link token issued prior to deactivation.. Mattermost Advisory ID: MMSA-2026-00681

Affected configurations

• mattermost mattermost server (>= 11.6.0 < 11.6.5) • mattermost mattermost server (>= 11.7.0 < 11.7.3)

Related

Weakness · CWE (1)

  • CWE-305 Authentication Bypass by Primary Weakness weakness

References