9.1Crítica

CVE-2026-94265Authorization: Negotiate sent to foreign origin

curl curl Publicada: (hace 21 días)

Descripción

When processing an HTTP redirect to a URL containing userinfo (a `username:password` component), curl might erroneously retain and re-transmit the original host's HTTP Negotiate authentication state. Consequently, a malicious server can trigger a redirect containing arbitrary userinfo to force curl to send a freshly minted Kerberos ticket—generated using the ambient identity of the client process to an untrusted third-party host, effectively bypassing the domain-scoping restrictions normally enforced by the absence of `--location-trusted`.

Debilidad (CWE): CWE-200

Datos: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Se publican tal como los indican las fuentes, en inglés.

Productos y versiones afectados

FabricanteProductoVersiones
curl curl 8.22.0 – ≤ 8.22.0, 8.21.0 – ≤ 8.21.0

Referencias y parches