CVE-2026-16048mediumCWE-863

Channel member roles accept out-of-scope roles

13Vexday Risk Score

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

ssvc Trackcvss 6.3epss 0.2%

probabilidade de exploração

0.2%top 95% das CVEs

exploração observada

nãonenhuma fonte reporta

Mattermost versions 11.8.x <= 11.8.2, 11.7.x <= 11.7.6, 10.11.x <= 10.11.21 fail to restrict channel member role assignment to channel-scoped roles which allows a channel administrator to gain additional channel permissions via the channel member roles API.. Mattermost Advisory ID: MMSA-2026-00697

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

Produtos afetados

Mattermost · Mattermost

Referências

https://mattermost.com/security-updates