Vulnerability Description
boringproxy through 0.10.0 contains a resource exhaustion vulnerability that allows any authenticated user to permanently exhaust server file descriptors, goroutines, and memory by sending requests to the GET /loading endpoint with attacker-supplied id query parameter values. Because the handler performs no map-lookup validity check and receives on a nil channel that blocks forever, with no timeout, no context cancellation, and no server-side reclamation due to absent HTTP server timeouts, each malicious request permanently holds one goroutine, one file descriptor, and approximately 50 kB of memory until the server's file descriptor limit is reached and listener Accept calls fail, halting all tunnel traffic forwarding for all users.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/theopaid/Denial-Of-Service-Through-Unbounded-Resource-Consump
- https://www.vulncheck.com/advisories/boringproxy-resource-exhaustion-dos-via-get
FAQ
What is CVE-2026-70616?
CVE-2026-70616 is a vulnerability with a CVSS score of 6.5 (MEDIUM). boringproxy through 0.10.0 contains a resource exhaustion vulnerability that allows any authenticated user to permanently exhaust server file descriptors, goroutines, and memory by sending requests to...
How severe is CVE-2026-70616?
CVE-2026-70616 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-70616?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.