CVE-2026-5163: Mattermost Server: eksik yetkilendirme

Açıklama (NVD)

Mattermost versions 11.5.x <= 11.5.1 fail to verify channel membership when processing AI-assisted message rewrites which allows an authenticated attacker to read the content of threads in private channels and direct messages they do not have access to via a crafted request to the post rewrite endpoint.. Mattermost Advisory ID: MMSA-2026-00645

Özet bilgiler

Ürün

Mattermost Mattermost Server

CVSS v3.1

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

EPSS

%0,21 (yüzdelik 11)

CWE

CWE-862

Yama

Yok / bilinmiyor

Etkilenen sürümler

Kaynaklar

• NVD kaydı
• mattermost.com
• CWE-862