CVE-2024-41144: Mattermost allows remote actor to create/update/delete posts in arbitrary channels

August 1, 2024 (updated July 9, 2025)

Mattermost versions 9.9.x <= 9.9.0, 9.5.x <= 9.5.6, 9.7.x <= 9.7.5, 9.8.x <= 9.8.1 fail to properly validate synced posts, when shared channels are enabled, which allows a malicious remote to create/update/delete arbitrary posts in arbitrary channels

References

github.com/advisories/GHSA-vg67-chm7-8m3j
github.com/mattermost/mattermost
mattermost.com/security-updates
nvd.nist.gov/vuln/detail/CVE-2024-41144
pkg.go.dev/vuln/GO-2024-3023

Code Behaviors & Features

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