Cross-Namespace Secret Access Issue in MARIN3R by 3scale
CVE-2025-64171

8.7HIGH

Key Information:

Vendor

3scale-sre

Status
Marin3r
Vendor
CVE Published:
6 November 2025

What is CVE-2025-64171?

A vulnerability exists in the lightweight CRD based envoy control plane for Kubernetes, MARIN3R, versions 0.13.3 and earlier. This issue allows unauthorized users to access secrets in different namespaces by bypassing Role-Based Access Control (RBAC) via a flaw in the DiscoveryServiceCertificate. Upgrading to version 0.13.4 resolves this issue.

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Deploy the Patch

Affected Version(s)

marin3r < 0.13.4

References

https://github.com/3scale-sre/marin3r/security/advisories...
x_refsource_CONFIRM
https://github.com/3scale-sre/marin3r/commit/859b14115fde...
x_refsource_MISC

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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