CVEvulnerability

CVE-2026-19600

4.9 MEDIUM Published 2026-10-16 Modified 2026-10-27 Official page ↗
Status
Analyzed
Published
2026-10-16
Last modified
2026-10-27
Assigner
[email protected]
CVSS 3.1 ([email protected])
4.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:N
CVSS 3.1 ([email protected])
4.9 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Weaknesses
CWE-532

Description

Mattermost versions 11.9.x <= 11.9.1, 11.8.x <= 11.8.5, 11.7.x <= 11.7.10, 11.10.x <= 11.10.1 fail to sanitize authentication tokens before writing them to server log entries, which allows an attacker with access to server logs to obtain valid session tokens or OAuth access tokens and impersonate authenticated users via the debug-level Mattermost server log.. Mattermost Advisory ID: MMSA-2026-00763

Affected configurations

• mattermost mattermost server (>= 11.7.0 < 11.7.10) • mattermost mattermost server (>= 11.8.0 < 11.8.6) • mattermost mattermost server (>= 11.9.0 < 11.9.2) • mattermost mattermost server (>= 11.10.0 < 11.10.2)

Related

Weakness · CWE (1)

  • CWE-532 Insertion of Sensitive Information into Log File weakness

References