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 25 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 for Red Hat Enterprise Linux 8.6 Extended Life Cycle and AUS variants that fix this vulnerability. Users should apply the security update as described in the Red Hat advisory (RHSA-2026:59277) and the referenced article https://access.redhat.com/articles/11258 to remediate the issue.
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 affected versions in Red Hat Enterprise Linux 8.6. The advisory provides updated packages to address this issue.