DNS Rebinding Affecting github.com/coder/agentapi/cmd/server package, versions <0.4.0
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
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-GITHUBCOMCODERAGENTAPICMDSERVER-13147719
- published30 Sept 2025
- disclosed29 Sept 2025
- creditEvan Harris
Introduced: 29 Sep 2025
NewCVE-2025-59956 (opens in a new tab)How to fix?
Upgrade github.com/coder/agentapi/cmd/server to version 0.4.0 or higher.
Overview
Affected versions of this package are vulnerable to DNS Rebinding when hosted over plain HTTP on localhost. An attacker can access sensitive user data and chat history via the /messages endpoint that may include secret keys, file system contents, and intellectual property by enticing the user to navigate to a malicious website.