Capsule: Incomplete fix of CVE-2026-30963: singular/plural typo leaves namespaces/finalize unprotected
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| projectcapsule | capsule | affected |
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| Projectcapsule | Capsule |
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| Source | ID | Title |
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Github GHSA |
GHSA-gwxr-7h77-7777 | Capsule: Incomplete fix of CVE-2026-30963: singular/plural typo leaves namespaces/finalize unprotected |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.385% probability within 30 days)
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| Metrics |
ssvc
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| First Time appeared |
Projectcapsule
Projectcapsule capsule |
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| Vendors & Products |
Projectcapsule
Projectcapsule capsule |
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| Description | Capsule is a multi-tenancy and policy-based framework for Kubernetes. From 0.13.0 until 0.13.6, charts/capsule/templates/configuration.yaml configures the validating webhook with namespace/finalize instead of the Kubernetes resource name namespaces/finalize. A user with namespaces/finalize RBAC can send a PUT request to /api/v1/namespaces/{namespace}/finalize, and the singular rule never matches the plural resource, so the validating webhook is not invoked and the user can change the namespace tenant label. matchPolicy: Equivalent does not compensate because it handles API group and version equivalence rather than resource-name errors. This vulnerability is fixed in 0.13.6. | |
| Title | Capsule: Incomplete fix of CVE-2026-30963: singular/plural typo leaves namespaces/finalize unprotected | |
| Weaknesses | CWE-863 | |
| References |
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| Metrics |
cvssV3_1
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