Inefficient Regular Expression Complexity Affecting ceph-base package, versions <2:19.2.1-331.el9cp


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
1.22% (65th percentile)

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  • Snyk IDSNYK-RHEL9-CEPHBASE-15472775
  • published12 Mar 2026
  • disclosed26 Jul 2022

Introduced: 26 Jul 2022

CVE-2022-34749  (opens in a new tab)
CWE-1333  (opens in a new tab)

How to fix?

Upgrade RHEL:9 ceph-base to version 2:19.2.1-331.el9cp or higher.
This issue was patched in RHSA-2026:2711.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ceph-base package and not the ceph-base package as distributed by RHEL. See How to fix? for RHEL:9 relevant fixed versions and status.

In mistune through 2.0.2, support of inline markup is implemented by using regular expressions that can involve a high amount of backtracking on certain edge cases. This behavior is commonly named catastrophic backtracking.

CVSS Base Scores

version 3.1