PatchTheCVECVE-2026-119760: sniproxy through 0.7.0 contains a NULL pointer dereference vulnerability in resolv_cancel() that allows remote
CVE-2026-119760 is a high-severity flaw (CVSS 7.5) affecting affected software. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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.
Why this priority
- High severity
- Remotely exploitable, no login, no user action
No fix is published yet: follow the downgrade or mitigation steps.
Risk facts
| CVSS score | 7.5 (High) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | n/a |
| CISA exploited list | No |
| Weakness | CWE-476 |
| Published | 2026-10-30 |
| Last modified | 2026-10-30 |
Last updated 2026-10-30 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Timeline
- Published CVE record published
- Updated Record last modified
Advisories and coverage
Research and news
- Vulners Bulletins: CVE-2026-119760 sniproxy through 0.7.0 NULL Pointer Dereference via resolv_cancel() 2026-10-30
- Vulners Bulletins: CVE-2026-119760 sniproxy through 0.7.0 NULL Pointer Dereference via resolv_cancel() 2026-10-30
- VulDB Recent Entries: CVE-2026-119760 | dlundquist SniProxy up to 0.7.0 Resolution resolv_cancel null pointer dereference 2026-10-30
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-119760?
No fixed release is listed yet. Watch the vendor advisory and apply any mitigation shown on this page.
Is CVE-2026-119760 being exploited?
CVE-2026-119760 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-119760 affect?
CVE-2026-119760 affects affected software. Severity is high (CVSS 7.5). 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 na
How urgent is CVE-2026-119760?
Priority 31/100. High severity; Remotely exploitable, no login, no user action