Red Hat Security Advisory: Red Hat multicluster global hub 1.4.3 security update
Affects Red HatSource GCVE Database
Not known to be exploited · fixed in Red Hat package updates : patch Red Hat soon.
Data as of 29 Oct 2026, 11:18 UTC
Rated by Threat Radar · No CVSS score from NVD or the CNA
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 6% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 1.4.3
Exploitation evidence
Disclosed: evidence found.
CVE published 18 Dec 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.
What to do
AI-suggested
Red Hat has released version 1.4.3 of the multicluster global hub which includes the necessary security fixes. Users should upgrade to this version to mitigate the vulnerability. Refer to the official Red Hat Advanced Cluster Management for Kubernetes documentation and the advisory RHSA-2025:23644 for detailed upgrade instructions. No additional mitigation steps are indicated beyond applying this update.
Description
Red Hat has released a security update for the multicluster global hub component, version 1.4.3, which addresses security issues rated as important. The multicluster global hub enables management of multiple Kubernetes hub clusters from a single hub cluster. This update includes security fixes and updated container images to mitigate identified vulnerabilities.