{"id":"CVE-2025-4366","summary":"Request Smuggling Vulnerability in Pingora","details":"A request smuggling vulnerability identified within Pingora’s proxying framework, pingora-proxy, allows malicious HTTP requests to be injected via manipulated request bodies on cache HITs, leading to unauthorized request execution and potential cache poisoning.\n\nFixed in:  https://github.com/cloudflare/pingora/commit/fda3317ec822678564d641e7cf1c9b77ee3759ff https://github.com/cloudflare/pingora/commit/fda3317ec822678564d641e7cf1c9b77ee3759ff \n\nImpact: The issue could lead to request smuggling in cases where Pingora’s proxying framework, pingora-proxy, is used for caching allowing an attacker to manipulate headers and URLs in subsequent requests made on the same HTTP/1.1 connection.","aliases":["GHSA-93c7-7xqw-w357","RUSTSEC-2025-0037"],"modified":"2026-07-08T07:05:18.963232689Z","published":"2025-05-22T15:50:20.789Z","database_specific":{"cna_assigner":"cloudflare","cwe_ids":["CWE-444"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/4xxx/CVE-2025-4366.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/4xxx/CVE-2025-4366.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-4366"},{"type":"PACKAGE","url":"https://github.com/cloudflare/pingora"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/cloudflare/pingora","events":[{"introduced":"0"},{"fixed":"bd6a74b74675414a3e5d663f58664cd9a4a4b087"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"0.5.0"}],"source":["AFFECTED_FIELD","CPE_RANGE"],"cpe":"cpe:2.3:a:cloudflare:pingora:*:*:*:*:*:*:*:*"}}],"versions":["0.4.0","0.3.0","0.2.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-4366.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:A/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N"}]}