CVE-2026-124040
HIGH
NVD
CVSS Score
8.1
Severity
HIGH
Published
Nov 06, 2026
Vendor
unknown
Description
CivetWeb through 1.16, when built with USE_HTTP2 and enable_http2 on, contains a use-after-free vulnerability in handle_http2() that retains freed :method and :path pointers. Unauthenticated remote attackers can send a later HEADERS frame omitting these pseudo-headers to influence request method or path seen by access rules, or crash the server.