CVE-2026-73051
published 2026-08-14CVE-2026-73051: 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…
PriorityP345medium6.3CVSS 4.0
AVNACLATPPRNUINVCNVILVANSCNSINSANEXCRXIRXARXMAVXMACXMATXMPRXMUIXMVCXMVIXMVAXMSCXMSIXMSAXSXAUXRXVXREXUX
EPSS
0.57%
45.8th percentile
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.
Affected
3 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| actix | actix-web | < 3.12.0 | 3.12.0 |
| confidential-containers | trustee | — | — |
| openshift-update-service | openshift-update-service-rhel8 | — | — |
CVSS provenance
nvdv4.06.3MEDIUMCVSS: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
vendor_redhat6.3MEDIUM
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GHSA
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.
ghsa_unreviewed·2026-08-14
CVE-2026-73051 [MEDIUM] CWE-444 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.
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.
Red Hat
actix-http: Actix-http: HTTP Request Smuggling via malformed HTTP/1.1 headers
vendor_redhat·2026-08-14·CVSS 6.3
CVE-2026-73051 [MEDIUM] CWE-444 actix-http: Actix-http: HTTP Request Smuggling via malformed HTTP/1.1 headers
actix-http: Actix-http: HTTP Request Smuggling via malformed HTTP/1.1 headers
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.
A flaw was found in actix-http. This vulnerability allows unauthenticated remote attackers to perform HTTP request smuggling. By sending specially crafted HTTP/1.1 requests that include both Content-Length and Transfer-Encoding: chunked headers, an attacker can desynchronize backend requests through a front-end intermediary. This desynchronization ena
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2026-73051 gst-devtools: Actix-http: HTTP Request Smuggling via malformed HTTP/1.1 headers [fedora-all]
bugzilla·2026-09-21·CVSS 6.3
CVE-2026-73051 [MEDIUM] CVE-2026-73051 gst-devtools: Actix-http: HTTP Request Smuggling via malformed HTTP/1.1 headers [fedora-all]
CVE-2026-73051 gst-devtools: Actix-http: HTTP Request Smuggling via malformed HTTP/1.1 headers [fedora-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
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.
Bugzilla
CVE-2026-73051 keylime-agent-rust: Actix-http: HTTP Request Smuggling via malformed HTTP/1.1 headers [fedora-all]
bugzilla·2026-09-21·CVSS 6.3
CVE-2026-73051 [MEDIUM] CVE-2026-73051 keylime-agent-rust: Actix-http: HTTP Request Smuggling via malformed HTTP/1.1 headers [fedora-all]
CVE-2026-73051 keylime-agent-rust: Actix-http: HTTP Request Smuggling via malformed HTTP/1.1 headers [fedora-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
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.
Bugzilla
CVE-2026-73051 actix-http: Actix-http: HTTP Request Smuggling via malformed HTTP/1.1 headers
bugzilla·2026-08-14·CVSS 6.3
CVE-2026-73051 [MEDIUM] CVE-2026-73051 actix-http: Actix-http: HTTP Request Smuggling via malformed HTTP/1.1 headers
CVE-2026-73051 actix-http: Actix-http: HTTP Request Smuggling via malformed HTTP/1.1 headers
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.
2026-08-14
Published