Mattermost did not properly restrict channel creation

GHSA-vvpg-55p7-5h8w · BIT-mattermost-2024-39837 · CVE-2024-39837 · GO-2024-3032

Published Aug 1, 2024 · Modified Jul 25, 2025

Description

Mattermost versions 9.9.x <= 9.9.0, 9.5.x <= 9.5.6 fail to properly restrict channel creation which allows a malicious remote to create arbitrary channels, when shared channels were enabled.

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2024-39837
PACKAGE https://github.com/mattermost/mattermost
WEB https://mattermost.com/security-updates
WEB https://pkg.go.dev/vuln/GO-2024-3032

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