CVE-2026-18378

medium

Description

A flaw was found in koku-metrics-operator. The operator's CostManagementMetricsConfig custom resource allows user able to edit the CR to specify an arbitrary upload URL. When authentication.type is set to token (the default), the cluster-global Red Hat Cloud pull-secret bearer token is attached to HTTP requests sent to this user-controlled URL, allowing the attacker to obtain the token.

References

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-51094

https://bugzilla.redhat.com/show_bug.cgi?id=2509249

https://access.redhat.com/security/cve/CVE-2026-18378

https://access.redhat.com/errata/RHSA-2026:81201

Details

Source: Mitre, NVD

Published: 2026-07-30

Updated: 2026-10-23

Risk Information

CVSS v2

Base Score: 6.1

Vector: CVSS2#AV:N/AC:L/Au:M/C:C/I:N/A:N

Severity: Medium

CVSS v3

Base Score: 6.8

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

Severity: Medium

EPSS

EPSS: 0.00465