ServiceTalk HTTP/1.x TransferEncoding smuggling, fixed 0.42.65
CVE-2026-65370 Published on August 12, 2026
ServiceTalk HTTP/1.x incorrectly handles malformed Transfer-Encoding which could result in request smuggling attacks. This vulnerability is addressed in servicetalk version 0.42.65.
Vulnerability Analysis
CVE-2026-65370 is exploitable with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality, a high impact on integrity, and no impact on availability.
Weakness Type
What is a HTTP Request Smuggling Vulnerability?
When malformed or abnormal HTTP requests are interpreted by one or more entities in the data flow between the user and the web server, such as a proxy or firewall, they can be interpreted inconsistently, allowing the attacker to "smuggle" a request to one device without the other device being aware of it.
CVE-2026-65370 has been classified to as a HTTP Request Smuggling vulnerability or weakness.
Affected Versions
Apple servicetalk:- Before 0.42.65 is affected.