CivetWeb vulnerabilities
We track 3 vulnerabilities in CivetWeb products. 3 are rated high or critical, and none are known to be exploited. The most recent was published on November 6, 2026.
Latest CivetWeb vulnerabilities
- 8.1 High severity
civetweb: Use After Free
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
- 7.8 High severity
CivetWeb: Unquoted Search Path or Element
Vulnerability related to an unquoted search path in CivetWeb v1.16. This vulnerability allows a local attacker to execute arbitrary code with elevated privileges by placing a malicious executable in a directory that is scanned before the intended application p
- 8.7 High severity
CivetWeb: Improper Neutralization of Null Byte or NUL Character
A vulnerability in the CivetWeb library's function mg_handle_form_request allows remote attackers to trigger a denial of service (DoS) condition. By sending a specially crafted HTTP POST request containing a null byte in the payload, the server enters an infin