Advisory severityMedium4.9Red Hat Linux

Medium [CVE-2026-66080] Denial of Service via unbounded super-stream partition allocation

This medium-severity Red Hat Linux advisory covers CVE-2026-66080; related products: Red Hat Hardened Images, Red Hat OpenStack Platform 18.0.

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

CVE-2026-66080 Source published Sep 23, 2026Source updated Sep 23, 2026

VulniPulse record published Sep 25, 2026Record updated Sep 28, 2026

CVE-2026-66080

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Summary

Denial of Service via unbounded super-stream partition allocation. Red Hat rates this moderate (CVSS 4.9).

Weakness: CWE-770. Red Hat lists fixing advisory RHSA-2026:67552 with package rabbitmq-server4-3-main-4.3.6-1.hum1.

Affected products named by the advisory: Red Hat Hardened Images; Red Hat OpenStack Platform 18.0.

Affected versions

< 4.1.11
< 4.2.6
< 4.3.0

Official advisory · high-confidence parse· fetched 10 days ago·verify at source

Fixed versions

rabbitmq-server4-3-main-4.3.6-1.hum1
RHSA-2026:67552

Official advisory · high-confidence parse· fetched 10 days ago·verify at source

Mitigation checklist

Recommended fix / mitigation

Restrict management-tagged accounts and disable stream management where it is not needed.

Official advisory · high-confidence parse· fetched 10 days ago·verify at source

Discussion(0)

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