Missing Authorization Affecting github.com/mattermost/mattermost-plugin-legal-hold/server package, versions <1.1.5
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-GITHUBCOMMATTERMOSTMATTERMOSTPLUGINLEGALHOLDSERVER-16117796
- published21 Apr 2026
- disclosed6 Apr 2026
- creditHassan Mohammed
Introduced: 6 Apr 2026
CVE-2026-3524 (opens in a new tab)How to fix?
Upgrade github.com/mattermost/mattermost-plugin-legal-hold/server to version 1.1.5 or higher.
Overview
Affected versions of this package are vulnerable to Missing Authorization due to a missing return statement after a permission check in the ServeHTTP() function. An attacker can gain unauthorized access to, create, download, and delete sensitive legal hold data by sending crafted API requests to the plugin's endpoints.