{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/80572?format=json","vulnerability_id":"VCID-c1md-rvd7-n3ey","summary":"In Vinyl Cache before 9.0.1 and Varnish Cache before 9.0.3, a deficiency in HTTP/2 request parsing can be exploited to launch a backend request desync\nattack (request smuggling), which in turn can be used for cache poisoning,\nauthentication bypass, or possibly even information disclosure and manipulation. The attack vector only exists if HTTP/2 support is enabled by setting the\nfeature parameter to contain +http2. HTTP/2 support is disabled by\ndefault.","aliases":[{"alias":"CVE-2026-50052"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/106600?format=json","purl":"pkg:deb/debian/varnish@0?distro=trixie","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:deb/debian/varnish@0%3Fdistro=trixie"},{"url":"http://public2.vulnerablecode.io/api/packages/106597?format=json","purl":"pkg:deb/debian/varnish@6.5.1-1%2Bdeb11u3?distro=trixie","is_vulnerable":true,"affected_by_vulnerabilities":[{"vulnerability":"VCID-1weg-s38v-nkh9"},{"vulnerability":"VCID-3dne-w168-ckcb"},{"vulnerability":"VCID-9h7s-uh6r-ckam"}],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:deb/debian/varnish@6.5.1-1%252Bdeb11u3%3Fdistro=trixie"},{"url":"http://public2.vulnerablecode.io/api/packages/106595?format=json","purl":"pkg:deb/debian/varnish@7.1.1-2%2Bdeb12u1?distro=trixie","is_vulnerable":true,"affected_by_vulnerabilities":[{"vulnerability":"VCID-1weg-s38v-nkh9"},{"vulnerability":"VCID-3dne-w168-ckcb"},{"vulnerability":"VCID-9h7s-uh6r-ckam"}],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:deb/debian/varnish@7.1.1-2%252Bdeb12u1%3Fdistro=trixie"},{"url":"http://public2.vulnerablecode.io/api/packages/106599?format=json","purl":"pkg:deb/debian/varnish@7.7.0-3?distro=trixie","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:deb/debian/varnish@7.7.0-3%3Fdistro=trixie"},{"url":"http://public2.vulnerablecode.io/api/packages/106619?format=json","purl":"pkg:deb/debian/varnish@7.7.0-3%2Bdeb13u1?distro=trixie","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:deb/debian/varnish@7.7.0-3%252Bdeb13u1%3Fdistro=trixie"},{"url":"http://public2.vulnerablecode.io/api/packages/106598?format=json","purl":"pkg:deb/debian/varnish@7.7.3-3?distro=trixie","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:deb/debian/varnish@7.7.3-3%3Fdistro=trixie"}],"affected_packages":[],"references":[{"reference_url":"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1138778","reference_id":"1138778","reference_type":"","scores":[],"url":"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1138778"},{"reference_url":"https://vinyl-cache.org/security/VSV00019.html","reference_id":"VSV00019.html","reference_type":"","scores":[{"value":"2.3","scoring_system":"cvssv4","scoring_elements":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/S:N/AU:N/R:A/V:D/RE:L/U:Green"},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-06-03T13:27:03Z/"}],"url":"https://vinyl-cache.org/security/VSV00019.html"}],"weaknesses":[{"cwe_id":444,"name":"Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')","description":"The product acts as an intermediary HTTP agent (such as a proxy or firewall) in the data flow between two entities such as a client and server, but it does not interpret malformed HTTP requests or responses in ways that are consistent with how the messages will be processed by those entities that are at the ultimate destination."}],"exploits":[],"severity_range_score":"2.3 - 2.3","exploitability":null,"weighted_severity":null,"risk_score":null,"resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-c1md-rvd7-n3ey"}