Improper Validation of Specified Type of Input The advisory has been revoked - it doesn't affect any version of package github.com/mattermost/mattermost/server/v8/channels/app (opens in a new tab)
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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Test your applications- Snyk IDSNYK-GOLANG-GITHUBCOMMATTERMOSTMATTERMOSTSERVERV8CHANNELSAPP-8631678
- published16 Jan 2025
- disclosed16 Jan 2025
- creditc0rydoras
Introduced: 16 Jan 2025
CVE-2025-20086 (opens in a new tab)How to fix?
Upgrade github.com/mattermost/mattermost/server/v8/channels/app to version 9.11.6, 10.0.4, 10.1.4, 10.2.1 or higher.
Amendment
This was deemed not a vulnerability.
Overview
Affected versions of this package are vulnerable to Improper Validation of Specified Type of Input where an attacker can supply a style of proto to an action's style in post.props.attachments resulting in the webapp crashing.