CVE-2026-73051: actix-http before 3.12.1 HTTP Request Smuggling via CL.TE
actix · actix-http
Fixed in 3.12.1 · Affected: actix-http before 3.12.1 · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 47% of scored CVEs
DescriptionCVE.org
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 products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- actix · actix-httpbefore 3.12.1
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- actix
- Published
- August 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-73051 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.