CVE-2026-75886
Openshift/console: openshift/console: unauthenticated reverse proxy to in-cluster catalogd service with session token forwarding
- State
- Published
- Severity
- 7.2 High
- Published
- Sep 23, 2026
- Updated
- Oct 1, 2026
- Reserved
- Aug 18, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.2 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N | redhat |
Weaknesses
- CWE-441 Unintended Proxy or Intermediary ('Confused Deputy')
Affected Products
| Product | Versions |
|---|---|
Red Hat OpenShift Container Platform 4.17Red Hat |
|
Red Hat OpenShift Container Platform 4.18Red Hat |
|
Red Hat OpenShift Container Platform 4.19Red Hat |
|
Red Hat OpenShift Container Platform 4.20Red Hat |
|
Red Hat OpenShift Container Platform 4.21Red Hat |
|
Red Hat OpenShift Container Platform 4.22Red Hat |
|
Red Hat OpenShift Container Platform 4Red Hat |
References
- RHSA-2026:70587vendor-advisory
- RHSA-2026:70617vendor-advisory
- RHSA-2026:71447vendor-advisory
- RHSA-2026:71450vendor-advisory
- RHSA-2026:71453vendor-advisory
- RHSA-2026:71454vendor-advisory
- https://access.redhat.com/security/cve/CVE-2026-75886vdb-entry
- RHBZ#2517886issue-tracking
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