CVE-2026-54291
Gravedad CVSS v4.0:
ALTA
Tipo:
No Disponible / Otro tipo
Fecha de publicación:
06/07/2026
Última modificación:
09/07/2026
Descripción
*** Pendiente de traducción *** pgjdbc is an open source postgresql JDBC Driver. In releases 42.7.4 through 42.7.11, channelBinding=require connections can be silently downgraded from SCRAM-SHA-256-PLUS with channel binding to plain SCRAM-SHA-256 without it, losing the man-in-the-middle protection the setting is meant to guarantee. An attacker who can intercept the TLS connection can trigger the downgrade with a certificate whose signature algorithm has no tls-server-end-point channel-binding hash, because the bundled com.ongres.scram:scram-client returns an empty byte array instead of failing and pgJDBC ScramAuthenticator checks only that the server advertised a PLUS mechanism, without rejecting the empty binding or checking that the negotiated mechanism uses channel binding. This issue is fixed in version 42.7.12.
Impacto
Puntuación base 4.0
8.20
Gravedad 4.0
ALTA
Puntuación base 3.x
5.90
Gravedad 3.x
MEDIA
Productos y versiones vulnerables
| CPE | Desde | Hasta |
|---|---|---|
| cpe:2.3:a:postgresql:postgresql_jdbc_driver:*:*:*:*:*:*:*:* | 42.7.4 (incluyendo) | 42.7.12 (excluyendo) |
Para consultar la lista completa de nombres de CPE con productos y versiones, ver esta página