Server-side request forgery in Red Hat Cost Management 4
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat.
Summary
A flaw was found in the koku-metrics-operator for Red Hat OpenShift. The operator's CostManagementMetricsConfig custom resource allows a user able to edit the CR to specify an arbitrary upload URL. The operator attaches its own Kubernetes service-account bearer token to queries sent to this user-controlled URL, allowing the attacker to obtain the token.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
Red Hat 1 advisory
- RHSA-2026:81201 Released 2026-10-12 · Red Hat rating ImportantCost Management Metrics Operator Update
- Cost Management 4 registry.redhat.io/costmanagement/costmanagement-metrics-rhel9-operator
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Cost Management 4 | Fixed | RHSA-2026:81201 |
Not affected: 1 product
- Cost Management 4
Timeline
- 2026-10-02 Threatist record created from CVE-2026-18381
- 2026-10-03 Alias added: GHSA-wfh6-5fvj-2qcg
- 2026-10-12 Fix available: costmanagement/costmanagement-metrics-rhel9-operator@1790844333 · CNA
- 2026-10-12 1 new reference · CNA
- 2026-10-13 Fix available: RHSA-2026:81201 · Red Hat
- 2026-10-13 Fix available: Cost Management 4 · Red Hat
References
More Red Hat Cost Management Metrics Operator vulnerabilities
- TI-2026-01754 P11-kit: null dereference via c_derivekey with specific null parameters CVSS 3.1HIGH 7.5
- TI-2026-15109 Server-side request forgery in Red Hat Cost Management 4 CVSS 3.1HIGH 7.6
- TI-2026-15111 Server-side request forgery in Red Hat Cost Management 4 CVSS 3.1MEDIUM 6.8
Sources
- CVE-2026-18381 · CVE Program
- CVE-2026-18381 · NVD
- FIRST EPSS
- GHSA-wfh6-5fvj-2qcg · GitHub Advisory Database · CC BY 4.0
- CVE-2026-18381 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences