CVE-2026-79659Ech0 before 4.7.3 Server-Side Request Forgery via fetchPeerConnectInfo
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 7.7 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
- Weakness (CWE)
- CWE-918
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Awaiting Analysis
- Record last updated
- Oct 8, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
lin-snow Ech0 lin_snow:ech0 (from the name) | before 4.7.3; 4.7.3 not affected | CNA record |
References
- https://github.com/lin-snow/Ech0/security/advisories/GHSA-8mc6-xjpr-h98xvendor-advisory
- https://www.vulncheck.com/advisories/ech0-before-server-side-request-forgery-via-fetchpeerconnectinfothird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.