HIGH 8.3 NVD
CVE-2026-79659
Ech0 before 4.7.3 contains a server-side request forgery vulnerability in the fetchPeerConnectInfo function that uses unvalidated HTTP requests instead of safe
Ech0 before 4.7.3 contains a server-side request forgery vulnerability in the fetchPeerConnectInfo function that uses unvalidated HTTP requests instead of safe request methods with URL validation. Authenticated attackers can supply arbitrary URLs to access internal services and cloud metadata endpoints by triggering connection health checks or peer connection operations.
References
- https://github.com/lin-snow/Ech0/security/advisories/GHSA-8mc6-xjpr-h98x
- https://www.vulncheck.com/advisories/ech0-before-server-side-request-forgery-via-fetchpeer
This high severity vulnerability with a CVSS score of 8.3 was published on 2026-08-25 via NVD.
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