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org.postgresql:postgresql

libpgjava

CVE-2026-54291 is a medium severity vulnerability affecting libpgjava, the PostgreSQL JDBC driver, specifically versions from 42.7.4 up to but not including 42.7.12, and certain other specified versions. The issue relates to weaknesses identified by CWE-636 and CWE-757. Thingsboard version 4.3.1.3-r2 includes a patch addressing this and three other vulnerabilities. No known exploits have been reported in the wild.

The vulnerability CVE-2026-54291 affects libpgjava (pgjdbc), an open source PostgreSQL JDBC driver. It impacts versions >=42.7.4 and <42.7.12, as well as several other specific versions listed. The underlying issues correspond to CWE-636 (Use of Externally-Controlled Reference to a Resource in a Security Decision) and CWE-757 (Use of a Possibly Dangerous Function). Thingsboard version 4.3.1.3-r2 includes fixes for this and related vulnerabilities. The CVSS v3.1 base score is 5.9, indicating medium severity, with network attack vector, high attack complexity, no privileges required, no user interaction, unchanged scope, no confidentiality impact, high integrity impact, and no availability impact.

Detailed information about Org.postgresql:postgresql: PostgreSQL JDBC Driver: Silent channel-binding authentication downgrade via unsupported certificate algori

Org.postgresql:postgresql: PostgreSQL JDBC Driver: Silent channel-binding authentication downgrade via unsupported certificate algorithms (CVE-2026-54291) - Live Threat Intelligence - Threat Radar | OffSeq.com

Libpgjava: pgjdbc is an open source postgresql JDBC Driver. (CVE-2026-54291)

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