Skip to main content
VulnerabilityPublished Updated

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

0
Compare

Not known to be exploited · CVSS 6.3 Medium.

Data as of 7 Nov 2026, 23:24 UTC

CVSS 3.1 base score
6.3Medium
How severe the flaw is on the 0–10 CVSS scale.
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:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 10 Aug 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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

ProductAffectedFixed in
Red HatMulticluster Global Hub 1.4.9Affected–Fixed in–
Red HatMulticluster Global Hub 1.5.8Affected–Fixed in–
Red HatMulticluster Global Hub 1.6.6Affected–Fixed in–
Red HatMulticluster Global Hub 1.7.3Affected–Fixed in–
Red HatMulticluster Global Hub 1.8.2Affected–Fixed in–
Red HatMulticluster Global Hub 1.8.2Affected–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

Community reviews

Loading reviews…