CVE-2025-4366
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 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.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
pingora-corecrates.io | < 0.5.0 | 0.5.0 |
Affected products
2- Range: 0.2.0, 0.3.0, 0.4.0
Patches
Vulnerability mechanics
References
6- github.com/advisories/GHSA-93c7-7xqw-w357ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2025-4366ghsaADVISORY
- blog.cloudflare.com/resolving-a-request-smuggling-vulnerability-in-pingoraghsaWEB
- github.com/cloudflare/pingora/commit/fda3317ec822678564d641e7cf1c9b77ee3759ffghsaWEB
- github.com/cloudflare/pingora/security/advisories/GHSA-93c7-7xqw-w357ghsaWEB
- rustsec.org/advisories/RUSTSEC-2025-0037.htmlghsaWEB
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