Allocation of Resources Without Limits or Throttling Affecting postgresql-jdbc package, versions *


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.03% (9th percentile)

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  • Snyk IDSNYK-RHEL6-POSTGRESQLJDBC-16435218
  • published6 May 2026
  • disclosed29 Apr 2026

Introduced: 29 Apr 2026

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

How to fix?

There is no fixed version for RHEL:6 postgresql-jdbc.

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 RHEL. See How to fix? for RHEL:6 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