CVE-2026-43974

Unexpected Status Code or Return Value vulnerability in ninenines gun gunhttp module allows a malicious HTTP server to force the client into raw protocol mode via an unsolicited 101 Switching Protocols response. In gunhttp:handleinform/8, when a 101 Switching Protocols response is received over...

CVE-2026-43974: Improper Enforcement of Behavioral Workflow

Unexpected Status Code or Return Value vulnerability in ninenines gun gunhttp module allows a malicious HTTP server to force the client into raw protocol mode via an unsolicited 101 Switching Protocols response. In gunhttp:handleinform/8, when a 101 Switching Protocols response is received over...

PT-2026-47300

Name of the Vulnerable Software and Affected Versions gun versions 2.0.0 through 2.3.x Description An issue in the gun http module allows a malicious HTTP server to force a client into raw protocol mode by sending an unsolicited 101 Switching Protocols response. In the handle inform/8 function, t...

Gun 安全漏洞

Gun is an open-source Erlang HTTP client developed by Nine Nines that supports HTTP/1.1, HTTP/2, and WebSocket. Versions of Gun from 2.0.0 to 2.4.0 contained security vulnerabilities. These vulnerabilities stemmed from unexpected status codes or return values in the gunhttp module, which could...