Vulnerability in Red Hat Openshift Container Platform 4
CVE-2026-75886
A flaw was found in openshift/console. An unauthenticated remote attacker can exploit a misconfiguration in the CatalogdHandler, which lacks proper authentication, and the forwarding of the `openshift-session-token` cookie. This allows the attacker to send requests to the in-cluster catalogd service, leading to the disclosure of the internal operator-catalog index and providing a relay into the openshift-catalogd namespace.
Published .
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- access.redhat.com/security/cve/CVE-2026-75886 (vdb-entry)
- bugzilla.redhat.com/show_bug.cgi (issue-tracking)
Frequently asked questions
- What is CVE-2026-75886?
- CVE-2026-75886 is a high-severity vulnerability in Red Hat Openshift Container Platform 4, classified under Unintended Proxy or Intermediary (Confused Deputy). CVSS score: 7.2/10. Published 2026-09-23.
- How severe is CVE-2026-75886?
- High severity. CVSS v3 base score is 7.2 out of 10.