Vulnerability Description
sniproxy through 0.7.0 contains a NULL pointer dereference vulnerability in resolv_cancel() that allows remote unauthenticated attackers to crash the daemon by sending overlong hostnames. Attackers can send a 254 or 255 character TLS SNI name or HTTP Host header matching a wildcard backend, then close the connection to terminate the proxy.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/dlundquist/sniproxy
- https://github.com/dlundquist/sniproxy/blob/1cc625ea41796695a54593d1bd779366b82b
- https://github.com/dlundquist/sniproxy/blob/1cc625ea41796695a54593d1bd779366b82b
- https://github.com/dlundquist/sniproxy/issues/411
- https://github.com/renaudallard/sniproxy/commit/17986ba7397297313331297cac3b9eb3
- https://github.com/renaudallard/sniproxy/commit/d5d78290c8fe15d9aa12185d2c57739b
- https://www.vulncheck.com/advisories/sniproxy-through-0.7.0-null-pointer-derefer
FAQ
What is CVE-2026-119760?
CVE-2026-119760 is a vulnerability with a CVSS score of 7.5 (HIGH). sniproxy through 0.7.0 contains a NULL pointer dereference vulnerability in resolv_cancel() that allows remote unauthenticated attackers to crash the daemon by sending overlong hostnames. Attackers ca...
How severe is CVE-2026-119760?
CVE-2026-119760 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-119760?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.