CVE-2026-79659
Ech0 before 4.7.3 Server-Side Request Forgery via fetchPeerConnectInfo
CVSS Score
7.7
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-918 |
| Vendor | lin-snow |
| Product | ech0 |
| Published | Aug 25, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
None
Availability
None
Affected Versions
lin-snow / Ech0
0 < 4.7.3