Medium [CVE-2026-77420] Denial of Service vulnerability in history configuration processing
This medium-severity Red Hat Linux advisory covers CVE-2026-77420; related products: Red Hat AMQ Broker 7, Red Hat Fuse 7, Red Hat OpenShift AI (RHOAI).
Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.
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Summary
Denial of Service vulnerability in history configuration processing. Red Hat rates this moderate (CVSS 5.5).
Weakness: CWE-1333.
Affected products named by the advisory: Red Hat AMQ Broker 7; Red Hat Fuse 7; Red Hat OpenShift AI (RHOAI); Red Hat OpenStack Platform 13 (Queens).
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · high-confidence parse· fetched 9 days ago·verify at source
- 3.30.15
- 4.3.1
Official advisory · high-confidence parse· fetched 9 days ago·verify at source
Mitigation checklist
- If application configuration allows user-supplied values to flow into HISTORY_IGNORE, validate or sanitize those values to reject regular expression metacharacters (e.g., nested quantifiers such as (a+)+) before they reach JLine's history processing.
Official advisory · high-confidence parse· fetched 9 days ago·verify at source
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