CVE-2026-94439 - HTTP/1 server connection desynchronization after 2xx CONNECT response in net/http
CVE ID :CVE-2026-94439
Published : Oct. 8, 2026, 11:17 p.m. | 6 hours, 29 minutes ago
Description :When an HTTP server handler sends a 2xx response to an HTTP/1 CONNECT request and returns without hijacking the connection, the server improperly continues to read and serve requests from the connection. Since a 2xx response to an HTTP/1 CONNECT converts the connection into a tunnel, the server should not treat the connection as continuing to contain HTTP. The impact of this misbehavior is mostly limited to potential request smuggling, where an intermediate proxy considers the data on the connection to be tunneled and the server considers it to be HTTP.
Severity: 0.0 | NA
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Published : Oct. 8, 2026, 11:17 p.m. | 6 hours, 29 minutes ago
Description :When an HTTP server handler sends a 2xx response to an HTTP/1 CONNECT request and returns without hijacking the connection, the server improperly continues to read and serve requests from the connection. Since a 2xx response to an HTTP/1 CONNECT converts the connection into a tunnel, the server should not treat the connection as continuing to contain HTTP. The impact of this misbehavior is mostly limited to potential request smuggling, where an intermediate proxy considers the data on the connection to be tunneled and the server considers it to be HTTP.
Severity: 0.0 | NA
Visit the link for more details, such as CVSS details, affected products, timeline, and more...