{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-119760","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","state":"PUBLISHED","assignerShortName":"VulnCheck","dateReserved":"2026-10-30T15:35:11.988Z","datePublished":"2026-10-30T17:19:53.212Z","dateUpdated":"2026-10-30T17:19:53.212Z"},"containers":{"cna":{"providerMetadata":{"orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","shortName":"VulnCheck","dateUpdated":"2026-10-30T17:19:53.212Z"},"datePublic":"2026-10-23T00:00:00.000Z","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. 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."}],"problemTypes":[{"descriptions":[{"lang":"en","description":"NULL Pointer Dereference","cweId":"CWE-476","type":"CWE"}]}],"affected":[{"vendor":"dlundquist","product":"sniproxy","packageURL":"pkg:github/dlundquist/sniproxy","defaultStatus":"unaffected","versions":[{"version":"0","lessThanOrEqual":"0.7.0","status":"affected","versionType":"semver"}],"repo":"https://github.com/dlundquist/sniproxy"}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:sniproxy_project:sniproxy:*:*:*:*:*:*:*:*","versionEndIncluding":"0.7.0"}]}]}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"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","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":8.7,"baseSeverity":"HIGH"}},{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH"}}],"references":[{"url":"https://github.com/dlundquist/sniproxy/issues/411","tags":["issue-tracking"]},{"url":"https://github.com/dlundquist/sniproxy/blob/1cc625ea41796695a54593d1bd779366b82b8b4e/src/connection.c#L737-L738","tags":["technical-description"]},{"url":"https://github.com/dlundquist/sniproxy/blob/1cc625ea41796695a54593d1bd779366b82b8b4e/src/resolv.c#L219-L224","tags":["technical-description"]},{"url":"https://github.com/renaudallard/sniproxy/commit/d5d78290c8fe15d9aa12185d2c57739b7b0c6a6b","tags":["patch"]},{"url":"https://github.com/renaudallard/sniproxy/commit/17986ba7397297313331297cac3b9eb3f0ba96b7","tags":["patch"]},{"url":"https://github.com/dlundquist/sniproxy","tags":["product"]},{"name":"VulnCheck Advisory: sniproxy through 0.7.0 NULL Pointer Dereference via resolv_cancel()","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/sniproxy-through-0.7.0-null-pointer-dereference-via-resolv-cancel"}],"credits":[{"lang":"en","value":"Renaud Allard","type":"finder"}],"x_generator":{"engine":"vulncheck-endgame"}}}}