Timing Attack Affecting github.com/mattermost/mattermost/server/v8/channels/utils package, versions <8.0.0-20250728063359-38208b8f065f
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-GITHUBCOMMATTERMOSTMATTERMOSTSERVERV8CHANNELSUTILS-13601133
- published17 Oct 2025
- disclosed16 Oct 2025
- creditDoyenSec
Introduced: 16 Oct 2025
NewCVE-2025-54499 Â (opens in a new tab)How to fix?
Upgrade github.com/mattermost/mattermost/server/v8/channels/utils to version 8.0.0-20250728063359-38208b8f065f or higher.
Overview
Affected versions of this package are vulnerable to Timing Attack via the IsValidWebAuthRedirectURL() function. An attacker can obtain sensitive information such as Cloud API keys and OAuth client secrets by analyzing response times during authentication attempts.