high7.4
CVE-2025-4366
Pingora has a Request Smuggling Vulnerability
Impact
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.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| rust | pingora-core | < 0.5.0 | 0.5.0 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Cloudflare | Pingora | before 0.5.0 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/cloudflare/pingora
- https://github.com/advisories/GHSA-93c7-7xqw-w357
- 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