CVE-2026-116587: Red Hat Denial of Service via crafted RSA parameters in JWKs
This Red Hat advisory covers CVE-2026-116587. Related products: Multicluster Engine for Kubernetes, OpenShift Service Mesh 3, Red Hat Advanced Cluster Management for Kubernetes 2.
Key facts
- Vendor rating
- High, CVSS 7.5
- CISA KEV
- Not listed (catalogue checked )
- Versions named
- < 4.1.6
- Fixed in
- 4.1.6
- Source published
- Listed by VulniPulse
Compiled by VulniPulse from the linked sources. How records are collected and checked.
Related products & platforms
Description
Denial of Service via crafted RSA parameters in JWKs. Red Hat rates this important (CVSS 7.5).
Weakness: CWE-770.
Affected products named by the advisory: Multicluster Engine for Kubernetes; OpenShift Service Mesh 3; Red Hat Advanced Cluster Management for Kubernetes 2; Red Hat OpenShift Container Platform 4.
Text from the source record.
- < 4.1.6
Official advisory · high-confidence parse· fetched ·verify at source
How to fix CVE-2026-116587
Upgrade to a fixed release named by Red Hat:
- 4.1.6
Vendor guidance
- 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.
CVE-2026-116587 in other vendors' advisories
- Veeam: KB4825
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