Description
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.
References8
- access.redhat.com/errata/RHSA-2026:70587
- access.redhat.com/errata/RHSA-2026:70617
- access.redhat.com/errata/RHSA-2026:71447
- access.redhat.com/errata/RHSA-2026:71450
- access.redhat.com/errata/RHSA-2026:71453
- access.redhat.com/errata/RHSA-2026:71454
- access.redhat.com/security/cve/CVE-2026-75886
- bugzilla.redhat.com/show_bug.cgi?id=2517886
Metrics
- CVSS 3.1
-
7.2
HIGH
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N - EPSS — exploit probability
- 0% percentile: 27 · as of 9 November 2026
- CWE
- CWE-441
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.