High [CVE-2026-50236] Authenticated SSRF with full response reflection and path neutralization via Dev Console webhook helpers in OpenShift Console
This high-severity Red Hat Linux advisory covers CVE-2026-50236 affecting Red Hat OpenShift Container Platform 4.
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Summary
An authenticated SSRF flaw was found in the OpenShift Console Dev Console webhook helpers. User-supplied target URLs are fetched server-side without validation, with path neutralization enabling arbitrary endpoint targeting and full response reflection from the console pod's privileged network position.
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. Red Hat does not currently list a fixing RHSA for this CVE.
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 2 hours ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
Mitigation checklist
- Apply NetworkPolicy egress restrictions to the openshift-console namespace to limit the console pod's outbound connectivity to required endpoints only (Kubernetes API server, OAuth server, monitoring). Note that a blanket default-deny egress policy will break console functionality. Monitor console access logs for unusual POST requests to /api/dev-console/webhooks/ paths with non-standard hostName values pointing to internal addresses or containing query separators.
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
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