{"id":"CVE-2026-119760","aliases":[],"cve":{"records":[{"id":"CVE-2026-119760","source":"VulnCheck","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-10-30T15:35:11.988Z","published":"2026-10-30T17:19:53.212Z","modified":"2026-10-30T17:19:53.212Z"}],"publishers":[{"name":"VulnCheck","role":"CNA","organizationId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","modified":"2026-10-30T17:19:53.212Z"}],"references":[{"url":"https://github.com/dlundquist/sniproxy/issues/411","tags":["issue-tracking"],"source":"VulnCheck"},{"url":"https://github.com/dlundquist/sniproxy/blob/1cc625ea41796695a54593d1bd779366b82b8b4e/src/connection.c#L737-L738","tags":["technical-description"],"source":"VulnCheck"},{"url":"https://github.com/dlundquist/sniproxy/blob/1cc625ea41796695a54593d1bd779366b82b8b4e/src/resolv.c#L219-L224","tags":["technical-description"],"source":"VulnCheck"},{"url":"https://github.com/renaudallard/sniproxy/commit/d5d78290c8fe15d9aa12185d2c57739b7b0c6a6b","tags":["patch"],"source":"VulnCheck"},{"url":"https://github.com/renaudallard/sniproxy/commit/17986ba7397297313331297cac3b9eb3f0ba96b7","tags":["patch"],"source":"VulnCheck"},{"url":"https://github.com/dlundquist/sniproxy","tags":["product"],"source":"VulnCheck"},{"url":"https://www.vulncheck.com/advisories/sniproxy-through-0.7.0-null-pointer-dereference-via-resolv-cancel","tags":["third-party-advisory"],"source":"VulnCheck"}],"weaknesses":[{"id":"CWE-476","description":"NULL Pointer Dereference","source":"VulnCheck"}],"applicability":[{"source":"VulnCheck","statements":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:sniproxy_project:sniproxy:*:*:*:*:*:*:*:*","versionEndIncluding":"0.7.0"}]}]}]}],"prioritization":[]},"title":"sniproxy through 0.7.0 NULL Pointer Dereference via resolv_cancel()","titleSource":"VulnCheck","descriptionSource":"VulnCheck","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the proxy.","score":8.7,"severity":"high","published":"2026-10-30T17:19:53.212Z","modified":"2026-10-30T17:19:53.212Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"dlundquist","name":"sniproxy","platforms":[],"versions":[{"version":"0","status":"affected","lessThanOrEqual":"0.7.0","versionType":"semver"}],"defaultStatus":"unaffected","packageURL":"pkg:github/dlundquist/sniproxy","cpes":[],"source":"VulnCheck","url":"https://www.cve.org/CVERecord?id=CVE-2026-119760"}],"remediation":[],"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"],"sources":[{"name":"CVE","id":"CVE-2026-119760","modified":"2026-10-30T17:19:53.212Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-119760"}],"assessments":[{"source":"VulnCheck","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","score":8.7},{"source":"VulnCheck","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5}],"sourceAffected":[],"observedAt":"2026-10-30T18:28:57.328Z","kev":{"status":"not-listed","checkedAt":"2026-10-31T14:20:31.980Z"},"coverage":[{"source":"NVD","status":"not-checked"},{"source":"GHSA","status":"not-checked"},{"source":"EUVD","status":"not-checked"},{"source":"EPSS","status":"not-checked"}],"evidence":[],"aiSummary":{"text":"sniproxy through 0.7.0 has a NULL pointer dereference vulnerability via resolv_cancel(), allowing remote unauthenticated attackers to crash the daemon with overlong hostnames. Attackers can send a long TLS SNI name or HTTP Host header and close the connection. This affects versions 0.7.0 and below.","model":"@cf/meta/llama-3.3-70b-instruct-fp8-fast","generatedAt":"2026-10-31T12:21:08.139Z","sources":[{"name":"CVE","url":"https://www.cve.org/CVERecord?id=CVE-2026-119760"}]}}