{"id":"CVE-2026-119760","state":"PUBLISHED","title":"sniproxy through 0.7.0 NULL Pointer Dereference via resolv_cancel()","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.","publishedAt":"2026-10-30T17:19:53.212Z","updatedAt":"2026-10-30T17:19:53.212Z","severity":{"score":8.7,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","source":"VulnCheck"},"assigner":"VulnCheck","products":["dlundquist sniproxy"],"affected":[{"vendor":"dlundquist","product":"sniproxy","packageURL":"pkg:github/dlundquist/sniproxy","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"0.7.0","versionType":"semver"}],"repo":"https://github.com/dlundquist/sniproxy"}],"references":["https://github.com/dlundquist/sniproxy/issues/411","https://github.com/dlundquist/sniproxy/blob/1cc625ea41796695a54593d1bd779366b82b8b4e/src/connection.c#L737-L738","https://github.com/dlundquist/sniproxy/blob/1cc625ea41796695a54593d1bd779366b82b8b4e/src/resolv.c#L219-L224","https://github.com/renaudallard/sniproxy/commit/d5d78290c8fe15d9aa12185d2c57739b7b0c6a6b","https://github.com/renaudallard/sniproxy/commit/17986ba7397297313331297cac3b9eb3f0ba96b7","https://github.com/dlundquist/sniproxy","https://www.vulncheck.com/advisories/sniproxy-through-0.7.0-null-pointer-dereference-via-resolv-cancel"],"weaknesses":["CWE-476"],"ingestedAt":"2026-10-30T17:28:06.624Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/119xxx/CVE-2026-119760.json","commit":"3341b8c15da9d44519feb86e18f02f360209d08a","baselineCommit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-119760","state":"PUBLISHED","datePublished":"2026-10-30T17:19:53.212Z","dateUpdated":"2026-10-30T17:19:53.212Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-10-30T15:35:11.988Z"},"containers":{"cna":{"title":"sniproxy through 0.7.0 NULL Pointer Dereference via resolv_cancel()","descriptions":[{"lang":"en","value":"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. 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