Vulnerability Description
Akamai Ghost on Akamai CDN edge servers before 2025-11-17 has a chunked request body processing error that can result in HTTP request smuggling. When Akamai Ghost receives an invalid chunked body that includes a chunk size different from the actual size of the following chunk data, under certain circumstances, Akamai Ghost erroneously forwards the invalid request and subsequent superfluous bytes to the origin server. An attacker could hide a smuggled request in these superfluous bytes. Whether this is exploitable depends on the origin server's behavior and how it processes the invalid request it receives from Akamai Ghost.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Akamai | Akamaighost | < 2025-11-17 |
Related Weaknesses (CWE)
References
- https://en.wikipedia.org/wiki/HTTP_request_smugglingTechnical Description
- https://www.akamai.com/blog/security/cve-2025-66373-http-request-smuggling-chunkVendor AdvisoryMitigation
FAQ
What is CVE-2025-66373?
CVE-2025-66373 is a vulnerability with a CVSS score of 4.8 (MEDIUM). Akamai Ghost on Akamai CDN edge servers before 2025-11-17 has a chunked request body processing error that can result in HTTP request smuggling. When Akamai Ghost receives an invalid chunked body that...
How severe is CVE-2025-66373?
CVE-2025-66373 has been rated MEDIUM with a CVSS base score of 4.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-66373?
Check the references section above for vendor advisories and patch information. Affected products include: Akamai Akamaighost.