{"id":"CVE-2026-73051","revision":"9f91d27acdc44b5dad3a7e4ab73d464d","records":[{"revision":"9f91d27acdc44b5dad3a7e4ab73d464d","observedAt":"2026-10-25T15:19:03.401+00:00","statement":{"source":"nvd","id":"CVE-2026-73051","aliases":[],"title":"actix-http versions before 3.12.1 contain an HTTP request smuggling vulnerability in the HTTP/1.1 parser that accepts requests with both Content-Length and Transfer-Encoding: chunked headers. Unauthenticated remote attackers can exploit thi…","description":"actix-http versions before 3.12.1 contain an HTTP request smuggling vulnerability in the HTTP/1.1 parser that accepts requests with both Content-Length and Transfer-Encoding: chunked headers. Unauthenticated remote attackers can exploit this through a front-end intermediary to desynchronize backend requests and smuggle malicious HTTP requests to the Actix service.","state":0,"publishedAt":"2026-08-14T12:16:47.82+00:00","modifiedAt":"2026-09-24T20:02:50.26+00:00","affected":[],"metrics":[{"system":"CVSS 4.0 · disclosure@vulncheck.com · Secondary","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","score":6.3,"severity":"MEDIUM"}],"references":["https://github.com/actix/actix-web/security/advisories/GHSA-xhj4-vrgc-hr34","https://www.vulncheck.com/advisories/actix-http-before-http-request-smuggling-via-cl-te"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-73051","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Awaiting Analysis","weaknesses":["CWE-444"],"productCriteria":[],"sourceDates":{"published":"2026-08-14T12:16:47.820","lastModified":"2026-09-24T20:02:50.260"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-73051","identifiers":["CVE-2026-73051"]},"retained":false,"historicalAffected":[]}],"coverage":[]}