Threats Tagged 'cve-2026-54291'
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Threats Tagged 'cve-2026-54291'
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Org.postgresql:postgresql: PostgreSQL JDBC Driver: Silent channel-binding authentication downgrade via unsupported certificate algorithms (CVE-2026-54291)CVE-2026-54291 0 A vulnerability in PostgreSQL JDBC Driver versions 42.7.4 through 42.7.11 allows silent downgrade of channel-binding authentication from SCRAM-SHA-256-PLUS to plain SCRAM-SHA-256. This downgrade removes the man-in-the-middle protection intended by channel binding when using certain certificate signature algorithms that lack a tls-server-end-point hash. The issue arises from a combination of a scram-client library returning empty binding data and pgJDBC not enforcing channel binding properly. The vulnerability is fixed in version 42.7.12. No workaround fully restores enforcement on affected versions; upgrading is required. Using strict TLS certificate verification (sslmode=verify-full) can mitigate the risk independently of channel binding. Join the discussion | GCVE Database | 07/21/2026, 17:47:39 UTC Added: 07/21/2026, 19:58:06 UTC |
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