CVE-2026-102944
cpp-httplib is a C++ header-only HTTP/HTTPS library. Prior to 0.51.0, create_redirect_client() removes Host, Proxy-Authorization, and Author
CVSS
7.5
High
EPSS
—
KEV
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Exploit Today
0
0-100
Published: Oct 14, 2026 · Last modified: Oct 15, 2026 · CWE-522
Not enough EPSS history yet.
cpp-httplib is a C++ header-only HTTP/HTTPS library. Prior to 0.51.0, create_redirect_client() removes Host, Proxy-Authorization, and Authorization headers when following a cross-origin 301, 302, 307, or 308 redirect but leaves Cookie headers attached. detail::redirect() copies the request for those redirect codes, so cookies supplied directly or through default_headers_ are sent to the redirect target. An attacker who controls a redirect response, or a network position for a non-HTTPS origin, can receive session cookies intended for the original origin. A 303 redirect is not affected because that path clears all request headers. This issue is fixed in version 0.51.0.
- github.comhttps://github.com/yhirose/cpp-httplib/commit/0c1cc8c9866bb567ff11c1cd0d09779e8c5f8585
- github.comhttps://github.com/yhirose/cpp-httplib/releases/tag/v0.51.0
- github.comhttps://github.com/yhirose/cpp-httplib/security/advisories/GHSA-22mf-w2v3-r2jv
- github.comhttps://github.com/yhirose/cpp-httplib/security/advisories/GHSA-22mf-w2v3-r2jv