Incorrect Authorization Affecting github.com/mattermost/mattermost-plugin-gitlab/server package, versions <1.12.1-rc1
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-GITHUBCOMMATTERMOSTMATTERMOSTPLUGINGITLABSERVER-16778713
- published20 May 2026
- disclosed18 May 2026
- crediteahmed
Introduced: 18 May 2026
CVE-2026-6341 (opens in a new tab)How to fix?
Upgrade github.com/mattermost/mattermost-plugin-gitlab/server to version 1.12.1-rc1 or higher.
Overview
Affected versions of this package are vulnerable to Incorrect Authorization via the API-level authorization process. An attacker can create issues or attach comments to a locked group by sending direct API requests as a member of multiple groups.