MARIN3R: Cross-Namespace Vulnerability in the Operator
Priority LOW 37CWE-862Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-862.
Summary
MARIN3R is a lightweight, CRD based envoy control plane for kubernetes. In versions 0.13.3 and below, there is a cross-namespace secret access vulnerability in the project's DiscoveryServiceCertificate which allows users to bypass RBAC and access secrets in unauthorized namespaces. This issue is fixed in version 0.13.4.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00216 12th percentileScored 2026-11-07
Fix Fixed marin3r (3scale-sre): 0.13.4github.com/3scale-sre/marin3r (Go): 0.13.4
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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| 3scale-sre | marin3r | before 0.13.4 | 0.13.4 | Patch available | CNA |
| — | github.com/3scale-sre/marin3r (Go) | before 0.13.4 | 0.13.4 | Patch available | GHSA-gf93-xccm-5g6j |
- marin3r Vendor3scale-sre Affected before 0.13.4 Fixed in 0.13.4 Patch available CNA
- github.com/3scale-sre/marin3r (Go) Vendor— Affected before 0.13.4 Fixed in 0.13.4 Patch available GHSA-gf93-xccm-5g6j
Remediation
- Fix · CNA marin3r (3scale-sre) Fixed in 0.13.4
- Fix · GHSA-gf93-xccm-5g6j github.com/3scale-sre/marin3r (Go) Fixed in 0.13.4 Advisory →
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2025-64171
- 2026-10-03 Alias added: GHSA-gf93-xccm-5g6j
References
Other 5
- https://github.com/3scale-sre/marin3r/security/advisories/GHSA-gf93-xccm-5g6j
- https://github.com/3scale-sre/marin3r/commit/859b14115fde1d67620e645cd1b62e90e30d9981
- https://github.com/3scale-sre/marin3r/pull/294
- https://github.com/3scale-sre/marin3r/commit/c60246a43ae8c0c38dd7267f298d68a121a159fa
- https://github.com/3scale-sre/marin3r
Sources
- CVE-2025-64171 · CVE Program
- CVE-2025-64171 · NVD
- FIRST EPSS
- GHSA-gf93-xccm-5g6j · GitHub Advisory Database · CC BY 4.0
- CVE-2025-64171 · 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