SSRF in Red Hat Cost Management Metrics Operator
CVE-2026-18378
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.
Vulnerability class: SSRF (Server-Side Request Forgery)
EPSS: 0.002 (13.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:L/A:N.
Affected products
Weakness classification (CWE)
References
- secalert@redhat.com (x_refsource_REDHAT, vdb-entry, Vendor Advisory)
- secalert@redhat.com (x_refsource_REDHAT, issue-tracking, Mitigation, Issue Tracking, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-18378?
- CVE-2026-18378 is a high-severity vulnerability in Red Hat Cost Management Metrics Operator, classified under Server-Side Request Forgery (SSRF). CVSS score: 7.6/10. Published 2026-07-30.
- How severe is CVE-2026-18378?
- High severity. CVSS v3 base score is 7.6 out of 10.