CVE-2026-50237: Server-Side Request Forgery (SSRF) in Red Hat Red Hat OpenShift Container Platform 4.12
Description
CVE-2026-50237 is a Server-Side Request Forgery (SSRF) vulnerability in the OpenShift Console Helm catalog proxy of Red Hat OpenShift Container Platform 4.12. It allows a namespace tenant to create a ProjectHelmChartRepository with an arbitrary URL that the console pod fetches server-side, bypassing tenant egress restrictions. This can be combined with catalog metadata poisoning and admin-mediated chart installation to enable privilege escalation. The vulnerability has a CVSS score of 7.4 (high severity).
CVSS v3.1
Score 7.4high
Affected software
pkg:rpm/redhat/openshift-container-platformRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves SSRF and supply chain flaws in the OpenShift Console Helm catalog proxy. A tenant can plant a ProjectHelmChartRepository with an arbitrary URL, which the console pod fetches server-side, bypassing tenant egress restrictions. When combined with catalog metadata poisoning and admin-mediated chart installation, this can lead to privilege escalation. The issue affects Red Hat OpenShift Container Platform versions >=4.20.0 <4.20.34 and >=4.21.0 <4.21.29. Red Hat has released fixed container images in versions 4.20.34 and 4.21.29 to address this vulnerability.
Potential Impact
An attacker with namespace tenant privileges can exploit this SSRF vulnerability to bypass egress restrictions and potentially escalate privileges through catalog metadata poisoning and admin-mediated chart installation. This could lead to unauthorized access and control within the OpenShift environment.
Mitigation Recommendations
Red Hat has released fixed versions 4.20.34 and 4.21.29 of OpenShift Container Platform that address this vulnerability. Users should upgrade their clusters to these versions or later as soon as possible. Instructions for upgrading are available in the official Red Hat OpenShift documentation. No other mitigations are specified by the vendor advisory.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-5mvj-m7fw-m49w
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-50237"]
- Database Specific Severity
- HIGH
- Cvss Version
- 3.1
- State
- PUBLISHED
Patch Information
Threat ID: 6a85b4bdacd9273b49252309
Added to database: 08/19/2026, 13:50:53 UTC
Last enriched: 09/08/2026, 14:08:31 UTC
Last updated: 10/04/2026, 10:04:20 UTC
Views: 44
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