Allocation of Resources Without Limits or Throttling Affecting postgresql-jdbc package, versions <0:42.2.14-4.el8_10


Severity

Recommended
high

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
3.26% (89th percentile)

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  • Snyk IDSNYK-ALMALINUX8-POSTGRESQLJDBC-17295764
  • published11 Jun 2026
  • disclosed10 Jun 2026

Introduced: 10 Jun 2026

CVE-2026-42198  (opens in a new tab)
CWE-770  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:8 postgresql-jdbc to version 0:42.2.14-4.el8_10 or higher.
This issue was patched in ALSA-2026:25030.

NVD Description

Note: Versions mentioned in the description apply only to the upstream postgresql-jdbc package and not the postgresql-jdbc package as distributed by AlmaLinux. See How to fix? for AlmaLinux:8 relevant fixed versions and status.

pgjdbc is an open source postgresql JDBC Driver. From version 42.2.0 to before version 42.7.11, pgjdbc is vulnerable to a client-side denial of service during SCRAM-SHA-256 authentication. A malicious server can instruct the driver to perform SCRAM authentication with a very large iteration count. With a large enough value, the client spends an unbounded amount of CPU time inside PBKDF2 before authentication can fail. A single attempt ties up a CPU core. Repeated or concurrent attempts exhaust client CPU and can wedge connection pools. In affected versions, loginTimeout did not fully mitigate this problem. When loginTimeout expired, the caller could stop waiting, but the worker thread performing the connection attempt could continue running and burning CPU inside the SCRAM PBKDF2 computation. This issue has been patched in version 42.7.11.

CVSS Base Scores

version 3.1