Reference page — cumulative record through Thursday, October 8, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
CVE-2026-75886
Red Hat Red Hat OpenShift Container Platform 4.17 — Openshift/console: openshift/console: unauthenticated reverse proxy to in-cluster catalogd service with session token forwarding
AV AC PR UI S C I A CVSS EPSS %ile KEV
N L N N C L L N 7.2 .0033 24.2 —
AFFECTED
Product Versions Fixed
Red Hat OpenShift Container Platform 4.17 unspecified 1789939565
Red Hat OpenShift Container Platform 4.18 unspecified 1789904865
Red Hat OpenShift Container Platform 4.19 unspecified 1790095950
Red Hat OpenShift Container Platform 4.20 unspecified 1790112153
Red Hat OpenShift Container Platform 4.21 unspecified 1790142788
Red Hat OpenShift Container Platform 4.22 unspecified 1790130905
Red Hat OpenShift Container Platform 4 unspecified —
TIMELINE
Aug 18 Reserved by redhat
Sep 23 Published (CNA: redhat)
Sep 28 PATCH SHIPPED — CVE-2026-75886 (Red Hat OpenShift Container Platform 4.20). Fixed in Red Hat OpenShift Container Platform 4.20 1790112153.
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.
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
|---|
| August 18, 2026 | Reserved | Reserved by redhat |
| September 23, 2026 | Published | Published (CNA: redhat) |
| September 28, 2026 | PATCH SHIPPED | PATCH SHIPPED — CVE-2026-75886 (Red Hat OpenShift Container Platform 4.20). Fixed in Red Hat OpenShift Container Platform 4.20 1790112153. |
Affected
Affected products and packages — 7 rows
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|
| Red Hat | Red Hat OpenShift Container Platform 4.17 | — | — | 1789939565 |
| Red Hat | Red Hat OpenShift Container Platform 4.18 | — | — | 1789904865 |
| Red Hat | Red Hat OpenShift Container Platform 4.19 | — | — | 1790095950 |
| Red Hat | Red Hat OpenShift Container Platform 4.20 | — | — | 1790112153 |
| Red Hat | Red Hat OpenShift Container Platform 4.21 | — | — | 1790142788 |
| Red Hat | Red Hat OpenShift Container Platform 4.22 | — | — | 1790130905 |
| Red Hat | Red Hat OpenShift Container Platform 4 | — | — | — |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-75886 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Thursday, October 8, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.
