CVE-2025-30204VulnerabilityPublished 23 Jun 2025Updated 25 Oct 2026

Red Hat Security Advisory: Red Hat Multicluster GlobalHub 1.2.3 bug fixes and container updates

Affects Red HatSource GCVE Database

Not known to be exploited · fixed in 2.7.5 : patch Red Hat soon.

Data as of 26 Oct 2026, 06:26 UTC

Severity

High

Rated by Threat Radar · No CVSS score from NVD or the CNA

EPSS: 0.8% chance of exploitation in 30 days – higher than 56% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 2.7.5, 1.2.4, 0.12.2

Exploitation evidence

Disclosed: evidence found.
CVE published 23 Jun 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: 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 2026-10-26.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade Red Hat to 2.7.5, 1.2.4 or 0.12.2.

Affected software

Product	Affected	Fixed in
Red Hat Product Security Red Hat	Affected >=2.7.0 <2.7.5 >=0.12.0 <0.12.2 >=1.2.3 <1.2.4 Red Hat multicluster engine for Kubernetes multicluster engine for Kubernetes 2.7 for RHEL 9 multicluster engine for Kubernetes 2.7 for RHEL 8 arm64 Red Hat Advanced Cluster Management for Kubernetes Red Hat Advanced Cluster Management for Kubernetes 2.13 amd64 registry.redhat.io/rhacm2/volsync-rhel9@sha256:dec387317abbe8f550227d41a8b5cf48b054c31d077c818de7cc6b927e04295d_amd64 Red Hat Advanced Cluster Management for Kubernetes 2.14 registry.redhat.io/rhacm2/volsync-rhel9@sha256:d2226b5ec3e213aa92b18bf0d8c2d4d0f277fcbf7ad0c5b2fcbbfa72cf256269_amd64 Red Hat OpenShift Container Platform Red Hat OpenShift Container Platform 4.13 registry.redhat.io/openshift4/ose-cluster-autoscaler@sha256:006ba1f0a51bd4d09c7218964c9e4c17a884a71c9c645312948f219938401631_amd64 Red Hat Enterprise Linux Red Hat Enterprise Linux AppStream (v. 9) src opentelemetry-collector-0:0.107.0-10.el9_5.src Red Hat OpenShift Enterprise Red Hat OpenShift Container Platform 4.17 openshift4/ose-cluster-network-rhel9-operator@sha256:0a90a7f5271a2dc014d99bc67884b7041aefc822cefa08f7edf070e74c745819_amd64 Red Hat Enterprise Linux AppStream EUS (v.9.2) grafana-0:9.0.9-6.el9_2.src Red Hat Enterprise Linux AppStream EUS (v.9.4) grafana-0:9.2.10-22.el9_4.src registry.redhat.io/openshift4/ose-telemeter@sha256:27725970ffec2136048b51e027f39b77ff3efee8bc19b1afd8d1ab5eb5d4b5b4_amd64 opentelemetry-collector-0:0.107.0-8.el9_4.src logging for Red Hat OpenShift RHOL 6.0 for RHEL 9 ppc64le openshift-logging/cluster-logging-rhel9-operator@sha256:4c330f63c66355b8cd3e55ad603f44d909817ef51da5d1eb452d647da28457d8_ppc64le RHOL 6.1 for RHEL 9 openshift-logging/cluster-logging-rhel9-operator@sha256:385ca0686fede6d1407cbe93dd7436ded1fdd1835251df05c72d534f217888eb_arm64 osbuild-composer-0:101.3-1.el9_4.src osbuild-composer-0:76.1-1.el9_2.src osbuild-composer-0:118.2-1.el9_5.src grafana-0:10.2.6-11.el9_6.src osbuild-composer-0:132.2-1.el9_6.src Red Hat Enterprise Linux AppStream (v. 10) grafana-0:10.2.6-15.el10_0.src osbuild-composer-0:134.1-1.el10_0.src registry.redhat.io/openshift4/ose-cluster-network-operator@sha256:4311cfd1c3688b7d8d9b78d3fe7e5a0fd88629f1b5c2c4563c75a57469deecf6_amd64 Red Hat Enterprise Linux AppStream (v. 8) osbuild-composer-0:101-3.el8_10.src Red Hat Enterprise Linux AppStream EUS (v.8.8) osbuild-composer-0:75-3.el8_8.src multicluster-globalhub multicluster-globalhub 1.4 for RHEL 9 multicluster-globalhub/multicluster-globalhub-agent-rhel9@sha256:dfd05d87b8ee85e5bf0584d49491da51b5869a25cb466e950cf4297f96116411_ppc64le Red Hat ACM Red Hat Advanced Cluster Management for Kubernetes 2.13 for RHEL 9 rhacm2/acm-cli-rhel9@sha256:46ed5452c49e9f6a3e86e982bc4fa81be433494da27a3128d90f1d8ea547ef16_ppc64le Red Hat Enterprise Linux AppStream E4S (v.9.0) osbuild-composer-0:46.3-3.el9_0.src Red Hat Advanced Cluster Management for Kubernetes 2.9 for RHEL 8 rhacm2/acm-cluster-permission-rhel8@sha256:67ddc763611737867ee5be68b9854286a3f009b6e82dcb5906e318c2a6d9df6c_amd64 Red Hat OpenShift Container Platform 4.18 s390x openshift4/ose-cluster-node-tuning-rhel9-operator@sha256:324c2031f89bcdc8c173b44b3ebb208da5f09bc290f85d40eb534fb2e610fca1_s390x openshift4/ose-cluster-network-rhel9-operator@sha256:002a3b2e7a4f02538ef4b941d299e2a36a42180b7ca674c084aab1e75c4781fc_amd64 Red Hat OpenShift Container Platform 4.15 multicluster-globalhub 1.2 for RHEL 9 multicluster-globalhub/multicluster-globalhub-agent-rhel9@sha256:2d55e1657efcf6f3c0476958a3415e59455a14be10bc89e6d4fd768459e113eb_s390x	Fixed in 2.7.5 0.12.2 1.2.4

AI-suggested

Red Hat has released Multicluster engine for Kubernetes version 2.7.5 which includes fixes for CVE-2025-30204. Users should upgrade to version 2.7.5 or later to remediate this vulnerability. Updated container images and installation instructions are available in the Red Hat documentation. No additional mitigations are required beyond applying the official update. The vendor manages remediation for this product via these updated releases.

Description

Red Hat OpenShift Container Platform is Red Hat's cloud computing Kubernetes application platform solution designed for on-premise or private cloud deployments. This advisory contains the container images for Red Hat OpenShift Container Platform 4.15.53. See the following advisory for the RPM packages for this release: https://access.redhat.com/errata/RHBA-2025:9260 Space precludes documenting all of the container images in this advisory. See the following Release Notes documentation, which will be updated shortly for this release, for details about these changes: https://docs.redhat.com/en/documentation/openshift_container_platform/4.15/html/release_notes/ Security Fix(es): * golang-jwt/jwt: jwt-go allows excessive memory allocation during header parsing (CVE-2025-30204) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. To check for available updates, use the OpenShift CLI (oc) or web console. Instructions for upgrading a cluster are available at https://docs.redhat.com/en/documentation/openshift_container_platform/4.15/html-single/updating_clusters/index#updating-cluster-cli.

Impact

The vulnerability allows excessive memory allocation during JWT header parsing, which may lead to denial of service or resource exhaustion in affected Multicluster engine components. This impacts the stability and reliability of centralized Kubernetes cluster management operations. No known exploits in the wild have been reported. The impact is rated as high by Red Hat due to the potential for disruption in critical cluster management infrastructure.

Summary

The Multicluster engine for Kubernetes prior to version 2.7.5 contains a vulnerability in the golang-jwt/jwt library (CVE-2025-30204) that permits excessive memory allocation during JWT header parsing. This could potentially lead to resource exhaustion or denial of service conditions. Red Hat has released version 2.7.5 of the Multicluster engine which includes security updates and bug fixes to address this issue. The engine is used for centralized management of Kubernetes clusters across data centers and cloud environments, facilitating cluster creation, import, and configuration distribution via APIs. The advisory also references updates to VolSync v0.12 with security fixes. The vendor advisory confirms the availability of fixed images and provides detailed installation and update instructions.

CWE-405Asymmetric Resource Consumption (Amplification) (opens in a new tab)
Class weakness
The product does not properly control situations in which an adversary can cause the product to consume or produce excessive resources without requiring the adversary to invest equivalent work or otherwise prove authorization, i.e., the adversary's influence is "asymmetric."
Architecture and Design
An application must make resources available to a client commensurate with the client's access level.
Architecture and Design
An application must, at all times, keep track of allocated resources and meter their usage appropriately.
System Configuration
Consider disabling resource-intensive algorithms on the server side, such as Diffie-Hellman key exchange.
OWASP Cheat Sheets
File Upload (opens in a new tab)
OWASP ASVS 4.0.3
V12.1.1 (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 10 Aug 2026, 18:23 UTC

WeaknessesCWE-405

Technical details

References

Community reviews

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