CVEvulnerability

CVE-2026-3472

3.5 LOW Published 2026-06-26 Modified 2026-06-29 Official page ↗
Status
Analyzed
Published
2026-06-26
Last modified
2026-06-29
Assigner
[email protected]
CVSS 3.1 ([email protected])
3.5 LOW — CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N
Weaknesses
CWE-693

Description

Mattermost versions 10.11.x <= 10.11.18, 11.6.x <= 11.6.3, 11.5.x <= 11.5.6 fail to properly apply markdown image rendering restrictions to AI bot tool result posts, which allows an authenticated attacker to exfiltrate data to an attacker-controlled server via injecting markdown image syntax into tool result content rendered by a victim's client.. Mattermost Advisory ID: MMSA-2026-00619

Affected configurations

• mattermost mattermost server (>= 10.11.0 < 10.11.19) • mattermost mattermost server (>= 11.5.0 < 11.5.7) • mattermost mattermost server (>= 11.6.0 < 11.6.4)

Related

Weakness · CWE (1)

  • CWE-693 Protection Mechanism Failure weakness

References