Improper Validation of Specified Type of Input Affecting github.com/mattermost/mattermost/server/channels/app/imports package, versions >=9.11.0 <9.11.18>=10.5.0 <10.5.9>=10.8.0 <10.8.4>=10.9.0 <10.9.4>=10.10.0 <10.10.1
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-GITHUBCOMMATTERMOSTMATTERMOSTSERVERCHANNELSAPPIMPORTS-12150289
- published22 Aug 2025
- disclosed21 Aug 2025
- creditdaw10
Introduced: 21 Aug 2025
NewCVE-2025-8402 (opens in a new tab)How to fix?
Upgrade github.com/mattermost/mattermost/server/channels/app/imports to version 9.11.18, 10.5.9, 10.8.4, 10.9.4, 10.10.1 or higher.
Overview
Affected versions of this package are vulnerable to Improper Validation of Specified Type of Input in the bulk import feature. An attacker can cause the server to crash by submitting malformed import data as a system administrator.