Inefficient Regular Expression Complexity The advisory has been revoked - it doesn't affect any version of package openshift4/ose-console  (opens in a new tab)


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EPSS
0.46% (36th percentile)

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  • Snyk IDSNYK-RHEL7-OPENSHIFT4OSECONSOLE-15873722
  • published2 Apr 2026
  • disclosed26 Mar 2026

Introduced: 26 Mar 2026

CVE-2026-4926  (opens in a new tab)
CWE-1333  (opens in a new tab)

Amendment

The Red Hat security team deemed this advisory irrelevant for RHEL:7.

NVD Description

Note: Versions mentioned in the description apply only to the upstream openshift4/ose-console package and not the openshift4/ose-console package as distributed by RHEL.

Impact:

A bad regular expression is generated any time you have multiple sequential optional groups (curly brace syntax), such as {a}{b}{c}:z. The generated regex grows exponentially with the number of groups, causing denial of service.

Patches:

Fixed in version 8.4.0.

Workarounds:

Limit the number of sequential optional groups in route patterns. Avoid passing user-controlled input as route patterns.