{"id":"CLEANSTART-2024-SH93448","summary":"Varnish Cache, with HTTP/2 enabled, allows request smuggling and VCL authorization bypass via a large Content-Length header for a POST request","details":"Security vulnerability affects the varnish package. Varnish Cache, with HTTP/2 enabled, allows request smuggling and VCL authorization bypass via a large Content-Length header for a POST request.","modified":"2026-10-31T16:02:32.429647477Z","published":"2026-10-31T14:21:41.739296Z","upstream":["CVE-2021-36740"],"database_specific":{},"references":[{"type":"ADVISORY","url":"https://github.com/cleanstart-dev/cleanstart-security-advisories/tree/main/advisories/2024/CLEANSTART-2024-SH93448.json"},{"type":"WEB","url":"https://osv.dev/vulnerability/CVE-2021-36740"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-36740"}],"affected":[{"package":{"name":"varnish","ecosystem":"CleanStart","purl":"pkg:apk/cleanstart/varnish"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.6.1-r0"}]}],"database_specific":{"source":"https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2024/CLEANSTART-2024-SH93448.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N"}]}