CVE-2026-54291: falha de alta gravidade em pgjdbc
Silent channel-binding authentication downgrade via unsupported certificate algorithms
Publicada em
Aviso por e-mail quando ela entrar no KEV, ganhar PoC pública ou subir de nota.
21Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 8.2epss 0.2%
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.
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:L/SA:N
Produtos afetados
pgjdbc · pgjdbcCVEs relacionadas — pgjdbc
No mesmo produto, das mais perigosas para as menos.
CVE-2024-1597CRITICALpgjdbc SQL Injection via line comment generationEPSS 4.8%CVE-2026-42198HIGHpgjdbc: Unbounded PBKDF2 iterations in SCRAM authentication allows CPU exhaustion DoSEPSS 3.3%CVE-2022-31197HIGHSQL Injection in ResultSet.refreshRow() with malicious column names in pgjdbcEPSS 2.4%CVE-2022-41946MEDIUMTemporaryFolder on unix-like systems does not limit access to created files in pgjdbcEPSS 0.6%CVE-2025-49146HIGHpgjdbc Client Allows Fallback to Insecure Authentication Despite channelBinding=require ConfigurationEPSS 0.5%CVE-2026-107314MEDIUMpgjdbc does not enforce requireAuth when the value excludes every authentication methodEPSS 0.3%