CVE-2025-20621 Affecting mattermost-fips-10.7 package, versions <10.7.1-r1
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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- published1 May 2025
- disclosed16 Jan 2025
Introduced: 16 Jan 2025
CVE-2025-20621 (opens in a new tab)How to fix?
Upgrade Chainguard mattermost-fips-10.7 to version 10.7.1-r1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream mattermost-fips-10.7 package and not the mattermost-fips-10.7 package as distributed by Chainguard.
See How to fix? for Chainguard relevant fixed versions and status.
Mattermost versions 10.2.x <= 10.2.0, 9.11.x <= 9.11.5, 10.0.x <= 10.0.3, 10.1.x <= 10.1.3 fail to properly handle posts with attachments containing fields that cannot be cast to a String, which allows an attacker to cause the webapp to crash via creating and sending such a post to a channel.