CVE-2026-124040
CivetWeb through 1.16, when built with USE_HTTP2 and enable_http2 on, contains a use-after-free vulnerability in handle_http2() that retains
CVSS
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Exploit Today
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Publicado: 6 de nov. de 2026 · Última mod.: 6 de nov. de 2026 · CWE-416
Ainda não há histórico EPSS suficiente.
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.
- github.comhttps://github.com/civetweb/civetweb
- github.comhttps://github.com/civetweb/civetweb/blob/v1.16/src/http2.inl#L1574-L1581
- github.comhttps://github.com/civetweb/civetweb/issues/1379
- www.vulncheck.comhttps://www.vulncheck.com/advisories/civetweb-through-1.16-http-2-use-after-free-via-stale-pseudo-header-state
CVECVSSEPSSKEVRExploitTítuloMod.
CVE-2026-934247.5 ALT20.4%
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