{"id":"GHSA-3qmp-g57h-rxf2","summary":"Duplicate Advisory: Pingora Request Smuggling and Cache Poisoning","details":"### Duplicate Advisory\n\nThis advisory has been withdrawn because it is a duplicate of GHSA-93c7-7xqw-w357. This link is maintained to preserve external references.\n\n### Original Description\n\nPingora versions prior to 0.5.0 which used the caching functionality in pingora-proxy did not properly drain the downstream request body on cache hits.\n\nThis allows an attacker to craft malicious HTTP/1.1 requests which could lead to request smuggling or cache poisoning.\n\nThis flaw was corrected in commit fda3317ec822678564d641e7cf1c9b77ee3759ff by ensuring that the downstream request body is always drained before a connection can be reused.\n\nSee [the blog post](https://blog.cloudflare.com/resolving-a-request-smuggling-vulnerability-in-pingora/) for more information.","modified":"2025-06-20T18:07:39Z","published":"2025-05-22T20:25:15Z","withdrawn":"2025-06-20T18:07:39Z","database_specific":{"cwe_ids":["CWE-444"],"severity":"HIGH","github_reviewed":true,"github_reviewed_at":"2025-05-22T20:25:15Z","nvd_published_at":"2025-05-22T16:15:55Z"},"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-4366"},{"type":"WEB","url":"https://blog.cloudflare.com/resolving-a-request-smuggling-vulnerability-in-pingora"},{"type":"PACKAGE","url":"https://github.com/cloudflare/pingora"},{"type":"WEB","url":"https://rustsec.org/advisories/RUSTSEC-2025-0037.html"}],"affected":[{"package":{"name":"pingora-core","ecosystem":"crates.io","purl":"pkg:cargo/pingora-core"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"0.5.0"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/05/GHSA-3qmp-g57h-rxf2/GHSA-3qmp-g57h-rxf2.json"}}],"schema_version":"1.9.0","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"}]}