CVE-2026-9693 Affecting mattermost-10.11-fips-compat package, versions <10.11.21-r0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-MINIMOSLATEST-MATTERMOST1011FIPSCOMPAT-19159370
- published22 Aug 2026
- disclosed17 Aug 2026
Introduced: 17 Aug 2026
CVE-2026-9693 (opens in a new tab)How to fix?
Upgrade Minimos:latest mattermost-10.11-fips-compat to version 10.11.21-r0 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream mattermost-10.11-fips-compat package and not the mattermost-10.11-fips-compat package as distributed by Minimos.
See How to fix? for Minimos:latest relevant fixed versions and status.
Mattermost versions 10.11.x <= 10.11.20, 11.7.x <= 11.7.5 Mattermost fails to remove thread membership records when a user is removed from or leaves a team, which allows a previously removed user who is later re-invited to the team to view private channel thread root post content and metadata via the team threads API.. Mattermost Advisory ID: MMSA-2026-00682