CVE-2026-20796lowCWE-367

Time-of-check time-of-use vulnerability in common teams API

8Vexday Risk Score

Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.

ssvc Trackcvss 3.1epss 0.2%

probabilidade de exploração

0.2%top 89% das CVEs

exploração observada

nãonenhuma fonte reporta

Mattermost versions 10.11.x <= 10.11.9 fail to properly validate channel membership at the time of data retrieval which allows a deactivated user to learn team names they should not have access to via a race condition in the /common_teams API endpoint.. Mattermost Advisory ID: MMSA-2025-00549

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N

Produtos afetados

Mattermost · Mattermost

Referências

https://mattermost.com/security-updates