Red Hat Security Advisory: postgresql-jdbc security update
Affects Red Hat postgresql-jdbcSource GCVE Database
Not known to be exploited.
Data as of 6 Nov 2026, 02:02 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
Exploitation evidence
Disclosed: evidence found.
CVE published 13 Aug 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 5 Nov 2026.
What to do
AI-suggested
Red Hat has released updated postgresql-jdbc packages (version 42.2.28-1.el9_2.1) for Red Hat Enterprise Linux 9.2 and related variants. Users should apply these official updates as described in Red Hat's advisory and article https://access.redhat.com/articles/11258 to remediate the vulnerability. No additional mitigation steps are indicated by the vendor.
Description
A security vulnerability (CVE-2026-42198) affects the postgresql-jdbc package used by Java programs to access PostgreSQL databases. The flaw allows a client-side denial of service via malicious SCRAM-SHA-256 authentication. Red Hat has issued an important security update for this issue affecting Red Hat Enterprise Linux 9.2 variants. The update addresses the vulnerability by patching the postgresql-jdbc package to prevent exploitation.