CVE-2026-75886

HIGH 7.2

Openshift/console: openshift/console: unauthenticated reverse proxy to in-cluster catalogd service with session token forwarding

CVSS Score

7.2

EPSS Score

0.3%

EPSS Percentile

23th

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.

CWE	CWE-441
Vendor	red hat
Product	red hat openshift container platform 4.17
Published	Sep 23, 2026
Last Updated	Oct 1, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Affected Versions

Red Hat / Red Hat OpenShift Container Platform 4.17

All versions affected

Red Hat / Red Hat OpenShift Container Platform 4.18

All versions affected

Red Hat / Red Hat OpenShift Container Platform 4.19

All versions affected

Red Hat / Red Hat OpenShift Container Platform 4.20

All versions affected

Red Hat / Red Hat OpenShift Container Platform 4.21

All versions affected

Red Hat / Red Hat OpenShift Container Platform 4.22

All versions affected

Red Hat / Red Hat OpenShift Container Platform 4

All versions affected

References

NVD ↗ CVE.org ↗ EPSS Data ↗