Advisory severityHigh7.4Red Hat Linux

High [CVE-2026-50237] Namespace tenant SSRF with egress bypass, catalog poisoning, and admin-mediated supply chain escalation via ProjectHelmChartRepository in OpenShift Console

This high-severity Red Hat Linux advisory covers CVE-2026-50237 affecting Red Hat OpenShift Container Platform 4.12, Red Hat OpenShift Container Platform 4.13, Red Hat OpenShift Container Platform 4.14.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.

CVE-2026-50237 Source published Aug 11, 2026Source updated Aug 11, 2026

VulniPulse record published Aug 12, 2026Record updated Aug 27, 2026

CVE-2026-50237

Affected products & platforms

Red Hat LinuxUnclassified

Open source advisory

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Summary

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. Red Hat severity: Important — CVSS 7.4 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L).

Weakness: CWE-918.

Affected Red Hat products: Red Hat OpenShift Container Platform 4.12; Red Hat OpenShift Container Platform 4.13; Red Hat OpenShift Container Platform 4.14; Red Hat OpenShift Container Platform 4.15; Red Hat OpenShift Container Platform 4.16; Red Hat OpenShift Container Platform 4.17; Red Hat OpenShift Container Platform 4.18; Red Hat OpenShift Container Platform 4.19; Red Hat OpenShift Container Platform 4.2; Red Hat OpenShift Container Platform 4.21; Red Hat OpenShift Container Platform 4.22.

Red Hat fixing advisory: RHSA-2026:54206, RHSA-2026:54188, RHSA-2026:56789, RHSA-2026:56912, RHSA-2026:56854, RHSA-2026:60023, RHSA-2026:54545, RHSA-2026:54555, RHSA-2026:54583, RHSA-2026:54602, RHSA-2026:54770.

Affected versions

No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.

Official advisory · high-confidence parse· fetched 29 days ago·verify at source

Fixed versions

openshift4/ose-console:1786511587
openshift4/ose-console:1786477760
openshift4/ose-console:1787056403
openshift4/ose-console:1787028559
openshift4/ose-console-rhel9:1787054159
openshift4/ose-console-rhel9:1787631382
openshift4/ose-console-rhel9:1786540776
openshift4/ose-console-rhel9:1786486822
openshift4/ose-console-rhel9:1786534931
openshift4/ose-console-rhel9:1786574043
openshift4/ose-console-rhel9:1786607915
RHSA-2026:54206
RHSA-2026:54188
RHSA-2026:56789
RHSA-2026:56912
RHSA-2026:56854
RHSA-2026:60023
RHSA-2026:54545
RHSA-2026:54555
RHSA-2026:54583
RHSA-2026:54602
RHSA-2026:54770

Official advisory · high-confidence parse· fetched 29 days ago·verify at source

Mitigation checklist

Recommended fix / mitigation

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.

Official advisory · high-confidence parse· fetched 29 days ago·verify at source

Sources

Official and corroborating records used to build this advisory.

Red Hat Security Data APIofficial
Official vendor source used to discover this advisory; it remains the authority for affected products and remediation. Discovered from the machine-readable feed https://access.redhat.com/hydra/rest/securitydata/cve.json; this link opens the Red Hat Linux advisory index instead of the raw feed document.
Red Hat Linux
Official vendor advisoryofficial
Official advisory page fetched and parsed; accepted detail fields are attributed to this page.
Red Hat Linux
CVE.org CNA affected-product recordCVE.org
Structured CNA affected[] data independently confirmed the affected product scope; native advisory content remains authoritative.
CVE Program

Cross-references

Validate CVE metadata against the authoritative registries.

CVE-2026-50237NVD CVE.org MITRE

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