Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

CVE-2026-48856

Gravedad CVSS v4.0:
ALTA
Tipo:
CWE-601 Redireccionamiento de URL a sitio no confiable (Open Redirect)
Fecha de publicación:
10/06/2026
Última modificación:
15/06/2026

Descripción

*** Pendiente de traducción *** Sensitive Data Exposure vulnerability in Erlang OTP inets (httpc_response module) allows Retrieve Embedded Sensitive Data.<br /> <br /> The httpc client forwards the Authorization and Proxy-Authorization request headers to redirect targets without checking whether the redirect crosses an origin boundary. httpc_response:redirect/2 constructs the redirected request by updating only the host field of the header record; all other fields (including authorization and proxy_authorization) are copied verbatim. The redirect target host is never compared against the original host.<br /> <br /> autoredirect defaults to true, so this affects all httpc callers that do not explicitly disable automatic redirects.<br /> <br /> An attacker who controls a server that the victim contacts via httpc can issue a cross-origin 3xx redirect to a server they also control. The Authorization header (including Basic credentials derived from URL userinfo via httpc_request:handle_user_info/2) is forwarded to the redirect target, allowing credential theft. The same applies to the Proxy-Authorization header.<br /> <br /> This vulnerability is associated with program files lib/inets/src/http_client/httpc_response.erl.<br /> <br /> This issue affects OTP from 17.0 before 29.0.2, 28.5.0.2 and 27.3.4.13 corresponding to inets from 5.10 before 9.7.1, 9.6.2.2 and 9.3.2.6.

Productos y versiones vulnerables

CPE Desde Hasta
cpe:2.3:a:erlang:erlang\/inets:*:*:*:*:*:*:*:* 5.10 (incluyendo) 9.3.2.6 (excluyendo)
cpe:2.3:a:erlang:erlang\/inets:*:*:*:*:*:*:*:* 9.6 (incluyendo) 9.6.2.2 (excluyendo)
cpe:2.3:a:erlang:erlang\/inets:*:*:*:*:*:*:*:* 9.7 (incluyendo) 9.7.1 (excluyendo)
cpe:2.3:a:erlang:erlang\/otp:*:*:*:*:*:*:*:* 17.0 (incluyendo) 27.3.4.13 (excluyendo)
cpe:2.3:a:erlang:erlang\/otp:*:*:*:*:*:*:*:* 28.0 (incluyendo) 28.5.0.2 (excluyendo)
cpe:2.3:a:erlang:erlang\/otp:*:*:*:*:*:*:*:* 29.0 (incluyendo) 29.0.2 (excluyendo)