PT-2026-25812 · Mattermost · Mattermost

Joshua Rogers · Publicado 2026-02-13 · Atualizado 2026-03-17 · CVE-2026-1629

Positive Technologies (AI Summary)

CVSS v3.1

4.3

Média

Vetor base

AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Name of the Vulnerable Software and Affected Versions Mattermost versions 10.11.0 through 10.11.10

Description Mattermost fails to invalidate cached permalink preview data when a user loses channel access. This allows a user to continue viewing private channel content through previously cached permalink previews until the cache is reset or the user logs in again. The issue is identified by Mattermost Advisory ID MMSA-2026-00580.

Recommendations Mattermost versions 10.11.0 through 10.11.10 should be updated to a version where this issue is resolved.

Correção

Improper Access Control

Enumeração de Fraquezas

CWE-672

CWE-284

Identificadores relacionados

BDU:2026-06563

CVE-2026-1629

Produtos afetados

Mattermost

Referências · 6

• https://mattermost.com/security-updates · Aviso do Fabricante
• https://twitter.com/CVEnew/status/2033755317763223688 · Publicação no Twitter
• https://twitter.com/VulmonFeeds/status/2033753588472729704 · Publicação no Twitter
• https://bdu.fstec.ru/vul/2026-06563 · Nota de Segurança
• https://nvd.nist.gov/vuln/detail/CVE-2026-1629 · Nota de Segurança
• https://osv.dev/vulnerability/CVE-2026-1629 · Aviso do Fabricante