Advisory severityHigh7.5Red Hat Linux

High [CVE-2026-77422] Denial of Service via regular expression processing in built-in grep command

This high-severity Red Hat Linux advisory covers CVE-2026-77422; related products: Red Hat Fuse 7, Red Hat OpenShift AI (RHOAI), Red Hat OpenStack Platform 13 (Queens).

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.

CVE-2026-77422 Source published Sep 23, 2026Source updated Sep 23, 2026

VulniPulse record published Sep 24, 2026Record updated Sep 29, 2026

CVE-2026-77422

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Summary

Denial of Service via regular expression processing in built-in grep command. Red Hat rates this important (CVSS 7.5).

Weakness: CWE-1333.

Affected products named by the advisory: Red Hat Fuse 7; Red Hat OpenShift AI (RHOAI); Red Hat OpenStack Platform 13 (Queens).

Affected versions

< 3.0.0
< 3.30.15
< 4.3.1

Official advisory · high-confidence parse· fetched 8 days ago·verify at source

Fixed versions

3.30.15
4.3.1

Official advisory · high-confidence parse· fetched 8 days ago·verify at source

Mitigation checklist

Recommended fix / mitigation

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.

Official advisory · high-confidence parse· fetched 8 days ago·verify at source

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