Incorrect Default Permissions Affecting github.com/mattermost/mattermost/server/channels/api4 package, versions >=10.5.0 <10.5.12>=10.11.0 <10.11.4
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Start learning- Snyk IDSNYK-GOLANG-GITHUBCOMMATTERMOSTMATTERMOSTSERVERCHANNELSAPI4-14052534
- published19 Nov 2025
- disclosed18 Nov 2025
- creditJuho Forsén
Introduced: 18 Nov 2025
NewCVE-2025-55074 (opens in a new tab)Common Vulnerabilities and Exposures (CVE) are common identifiers for publicly known security vulnerabilities
Common Weakness Enumeration (CWE) is a category system for software weaknesses
How to fix?
Upgrade github.com/mattermost/mattermost/server/channels/api4 to version 10.5.12, 10.11.4 or higher.
Overview
Affected versions of this package are vulnerable to Incorrect Default Permissions via the Agents plugin process. An attacker can access information about when users have read channels by querying channel member objects.