CVE-2026-5163Published
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 ha…
Exact source revision recorded 25 Oct 2026 13:17:10 UTC. It does not establish the source's current position. Latest evidence.
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CVE-2026-5163 · Microsoft / collected KEV context
nvd · CVE-2026-5163
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