cloudflare/pingora · Security
Pingora has a Request Smuggling Vulnerability
- GHSA ID
- GHSA-93c7-7xqw-w357
- CVE ID
- CVE-2025-4366
- Severity
- high
- Published
- Updated
- CVSS v4
- 7.4 · 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
Description
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.
Fixed in
https://github.com/cloudflare/pingora/commit/fda3317ec822678564d641e7cf1c9b77ee3759ff
Impact
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.
CWEs
- CWE-444 · Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
References
- https://github.com/cloudflare/pingora/security/advisories/GHSA-93c7-7xqw-w357 ↗
- https://nvd.nist.gov/vuln/detail/CVE-2025-4366 ↗
- https://github.com/cloudflare/pingora/commit/fda3317ec822678564d641e7cf1c9b77ee3759ff ↗
- https://blog.cloudflare.com/resolving-a-request-smuggling-vulnerability-in-pingora ↗
- https://rustsec.org/advisories/RUSTSEC-2025-0037.html ↗
- https://github.com/advisories/GHSA-93c7-7xqw-w357 ↗