High severity · published Sep 23, 2026
CVE-2026-75886
Openshift/console: openshift/console: unauthenticated reverse proxy to in-cluster catalogd service with session token forwarding
7.2
CVSS
0.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 26% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RH
Red Hat OpenShift Container Platform 4.17 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat OpenShift Container Platform 4.18 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat OpenShift Container Platform 4.19 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat OpenShift Container Platform 4.20 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat OpenShift Container Platform 4.21 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat OpenShift Container Platform 4.22 · Red Hat
All versions, or not specified · source: vendor
Affected product
RH
Red Hat OpenShift Container Platform 4.17
Red Hat
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