GitHub Advisoryadvisory · crates.io
GHSA-93c7-7xqw-w357 Pingora has a Request Smuggling Vulnerability
HIGH
Official page ↗
- Aliases
- CVE-2025-4366
- Ecosystem
- crates.io
- Packages
- pingora-core
- Severity
- High
- CVSS vector
- 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
- Weaknesses
- CWE-444
- Reviewed
- 2025-06-20
Affected packages
• crates.io pingora-core: < 0.5.0 → fixed in 0.5.0
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.
Related
Alias · CVE (1)
- CVE-2025-4366 A request smuggling vulnerability identified within Pingora’s proxying framework, pingora-proxy, allows malicious HTTP requests to be… vulnerability
Weakness · CWE (1)
- CWE-444 Inconsistent Interpretation of HTTP Requests weakness
References
- https://github.com/cloudflare/pingora/security/advisories/GHSA-93c7-7xqw-w357 web
- https://nvd.nist.gov/vuln/detail/CVE-2025-4366 advisory
- https://github.com/cloudflare/pingora/commit/fda3317ec822678564d641e7cf1c9b77ee3759ff web
- https://blog.cloudflare.com/resolving-a-request-smuggling-vulnerability-in-pingora web
- https://github.com/cloudflare/pingora package
- https://rustsec.org/advisories/RUSTSEC-2025-0037.html web