Openshift/console: namespace tenant ssrf with egress bypass, catalog poisoning, and admin-mediated supply chain escalation via projecthelmchartrepository in openshift console
Summary
| CVE | CVE-2026-50237 |
|---|---|
| State | PUBLISHED |
| Assigner | redhat |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-08-11 12:17:38 UTC |
| Updated | 2026-08-26 17:17:06 UTC |
| Description | A Server-Side Request Forgery and supply chain flaw was found in the OpenShift Console Helm catalog proxy. A namespace tenant can plant a ProjectHelmChartRepository with an arbitrary URL that the console pod fetches server-side, bypassing tenant egress restrictions. Combined with catalog metadata poisoning and admin-mediated chart installation, this enables privilege escalation. |
Risk And Classification
Primary CVSS: v3.1 7.4 HIGH from [email protected]
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L
EPSS: 0.002590000 probability, percentile 0.172660000 (date 2026-08-27)
Problem Types: CWE-918 | CWE-918 Server-Side Request Forgery (SSRF)
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Secondary | 7.4 | HIGH | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L |
| 3.1 | CNA | CVSS | 7.4 | HIGH | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L |
CVSS v3.1 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Red Hat | Red Hat OpenShift Container Platform 4.12 | unaffected 1786511587 * rpm | Not specified |
| CNA | Red Hat | Red Hat OpenShift Container Platform 4.13 | unaffected 1786477760 * rpm | Not specified |
| CNA | Red Hat | Red Hat OpenShift Container Platform 4.14 | unaffected 1787056403 * rpm | Not specified |
| CNA | Red Hat | Red Hat OpenShift Container Platform 4.15 | unaffected 1787028559 * rpm | Not specified |
| CNA | Red Hat | Red Hat OpenShift Container Platform 4.16 | unaffected 1787054159 * rpm | Not specified |
| CNA | Red Hat | Red Hat OpenShift Container Platform 4.18 | unaffected 1786540776 * rpm | Not specified |
| CNA | Red Hat | Red Hat OpenShift Container Platform 4.19 | unaffected 1786486822 * rpm | Not specified |
| CNA | Red Hat | Red Hat OpenShift Container Platform 4.20 | unaffected 1786534931 * rpm | Not specified |
| CNA | Red Hat | Red Hat OpenShift Container Platform 4.21 | unaffected 1786574043 * rpm | Not specified |
| CNA | Red Hat | Red Hat OpenShift Container Platform 4.22 | unaffected 1786607915 * rpm | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| access.redhat.com/errata/RHSA-2026:54770 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:56912 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:54555 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:54188 | [email protected] | access.redhat.com | |
| bugzilla.redhat.com/show_bug.cgi | [email protected] | bugzilla.redhat.com | |
| access.redhat.com/errata/RHSA-2026:54583 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:54545 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:56789 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:54206 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:54602 | [email protected] | access.redhat.com | |
| access.redhat.com/security/cve/CVE-2026-50237 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:56854 | [email protected] | access.redhat.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: Red Hat would like to thank Christopher Lusk (North Echo Security Research) for reporting this issue. (en)
Additional Advisory Data
| Source | Time | Event |
|---|---|---|
| CNA | 2026-04-29T00:00:00.000Z | Reported to Red Hat. |
| CNA | 2026-08-11T09:47:00.000Z | Made public. |
Workarounds
CNA: Review existing ProjectHelmChartRepository resources in tenant namespaces for unexpected URLs using: oc get projecthelmchartrepositories --all-namespaces -o jsonpath='{range .items[*]}{.metadata.namespace}/{.metadata.name}: {.spec.connectionConfig.url}{"\n"}{end}'. Apply NetworkPolicy egress restrictions to the openshift-console namespace (note: requires allow-listing required console egress targets). Administrators should verify chart provenance before installing Helm charts from namespace-scoped repositories. Disable or restrict ProjectHelmChartRepository creation via RBAC if namespace tenants do not require custom Helm repositories.