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

CVE-2026-5773

Gravedad CVSS v3.1:
ALTA
Tipo:
CWE-918 Falsificación de solicitud en servidor (SSRF)
Fecha de publicación:
13/05/2026
Última modificación:
13/05/2026

Descripción

*** Pendiente de traducción *** libcurl might in some circumstances reuse the wrong connection for SMB(S)<br /> transfers.<br /> <br /> libcurl features a pool of recent connections so that subsequent requests can<br /> reuse an existing connection to avoid overhead.<br /> <br /> When reusing a connection a range of criteria must be met. Due to a logical<br /> error in the code, a network transfer operation that was requested by an<br /> application could wrongfully reuse an existing SMB connection to the same<br /> server that was using a different &amp;#39;share&amp;#39; than the new subsequent transfer<br /> should.<br /> <br /> This could in unlucky situations lead to the download of the wrong file or the<br /> upload of a file to the wrong place. When this happens, the same credentials<br /> are used and the server name is the same.

Productos y versiones vulnerables

CPE Desde Hasta
cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:* 7.40.0 (incluyendo) 8.20.0 (excluyendo)