CVE-2025-4366
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.
- Affected products
- Pingora
- Cloudflare Pingora
- < 0.5.0
- Fix
- Available
- CVSS 4.0
- 7.4 HIGH
- CVSS 3.1
- 6.1 MEDIUM
- EPSS
- 0.4% (35th percentile)
- Weakness
- CWE-444
- NVD status
- Analyzed
- Published
- 2025-05-22
No indexed exploits for CVE-2025-4366 yet
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No exploit for CVE-2025-4366 has been indexed yet. Our index is built from live traffic and upstream syncs, so this page can only say what it knows — not that no exploit exists.