Insertion of Sensitive Information into Log File Affecting github.com/mattermost/mattermost/server/public/model package, versions >=10.11.0-rc1 <10.11.14>=11.4.0-rc1 <11.4.4>=11.5.0-rc1 <11.5.2-rc3>=11.6.0-rc1 <11.6.0-rc3
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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Start learning- Snyk IDSNYK-GOLANG-GITHUBCOMMATTERMOSTMATTERMOSTSERVERPUBLICMODEL-16873662
- published24 May 2026
- disclosed18 May 2026
- creditEdgar Bellot Micó
Introduced: 18 May 2026
CVE-2026-6346 (opens in a new tab)How to fix?
Upgrade github.com/mattermost/mattermost/server/public/model to version 10.11.14, 11.4.4, 11.5.2-rc3, 11.6.0-rc3 or higher.
Overview
Affected versions of this package are vulnerable to Insertion of Sensitive Information into Log File via the support packet generation process. An attacker can access sensitive credentials in plaintext by downloading a support packet from the System Console. This is only exploitable if the attacker has access to the System Console or to the generated support packet.