CVE-2026-71577: Red Hat Multicluster Global Hub 1.4.9 · Insufficiently Protected Credentials
Affects Red Hat Multicluster Global Hub 1.4.9Source CVE Database V5
Not known to be exploited · CVSS 6.3 Medium.
Data as of 7 Nov 2026, 23:24 UTC
- EPSS
- 0.4% chance of exploitation in 30 days – higher than 36% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:NExploitation evidence
Disclosed: evidence found.
CVE published 10 Aug 2026
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 8 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Red HatMulticluster Global Hub 1.4.9 | Affected– | Fixed in– |
| Red HatMulticluster Global Hub 1.5.8 | Affected– | Fixed in– |
| Red HatMulticluster Global Hub 1.6.6 | Affected– | Fixed in– |
| Red HatMulticluster Global Hub 1.7.3 | Affected– | Fixed in– |
| Red HatMulticluster Global Hub 1.8.2 | Affected– | Fixed in– |
| Red HatMulticluster Global Hub 1.8.2 | Affected– | Fixed in– |
AI-suggested
Currently, no mitigation or patch is available that meets Red Hat's criteria for ease of use, applicability, and stability. Users should monitor Red Hat advisories for updates. Exploitation requires prior compromise of a managed hub and an active migration, so limiting exposure and securing managed hubs may reduce risk. Customers with a Technical Account Manager (TAM) can consult directly with Red Hat for guidance.
Description
A flaw was found in multicluster-global-hub. During a ManagedClusterMigration, the system incorrectly grants all managed hubs read access to a shared communication topic. This allows a compromised managed hub to intercept and collect sensitive bootstrap kubeconfigs, which contain API server tokens intended for other hubs. These tokens have an extended validity of approximately 9.86 years, significantly increasing the risk of unauthorized access and information disclosure to other managed clusters.
References
- access.redhat.com/security/cve/CVE-2026-71577 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2512514 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:67516 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:67842 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:68515 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:71597 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:73038 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:73419 (opens in a new tab)