Missing Authentication for Critical Function Affecting github.com/mattermost/mattermost/server/channels/store/opentracinglayer package, versions >=10.5.0 <10.5.12>=10.11.0 <10.11.4-rc2>=10.12.0 <10.12.1
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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Start learning- Snyk IDSNYK-GOLANG-GITHUBCOMMATTERMOSTMATTERMOSTSERVERCHANNELSSTOREOPENTRACINGLAYER-14038308
- published16 Nov 2025
- disclosed14 Nov 2025
- creditJuho Forsén
Introduced: 14 Nov 2025
NewCVE-2025-55073 (opens in a new tab)How to fix?
Upgrade github.com/mattermost/mattermost/server/channels/store/opentracinglayer to version 10.5.12, 10.11.4-rc2, 10.12.1 or higher.
Overview
Affected versions of this package are vulnerable to Missing Authentication for Critical Function via the MSTeams plugin OAuth flow. An attacker can modify arbitrary posts by sending a crafted OAuth redirect URL.