GO-2025-3950

vendorUSosv

Mattermost Missing Authorization vulnerability in github.com/mattermost/mattermost-server

view advisory published 2025-09-17Licence: per source

Mattermost Missing Authorization vulnerability in github.com/mattermost/mattermost-server. NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions. (If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.) The additional affected modules and versions are: github.com/mattermost/mattermost/server/v8 before v8.0.0-20250729073403-517ae758cd02.

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describes (1)

Related CVEs.

IDseverity exploitable
CVE-2025-9076USmedium6.5OT elevated—
Mattermost versions 10.10.x <= 10.10.1 fail to properly sanitize user data during shared channel membership synchronization, which allows malicious or compromised remote clusters t…
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references

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