CVE-2024-39690: high-severity vulnerability in projectcapsule capsule
Capsule tenant owner with "patch namespace" permission can hijack system namespaces
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.5epss 0.5%
Capsule is a multi-tenancy and policy-based framework for Kubernetes. In Capsule v0.7.0 and earlier, the tenant-owner can patch any arbitrary namespace that has not been taken over by a tenant (i.e., namespaces without the ownerReference field), thereby gaining control of that namespace. Version 0.7.1 contains a patch.
CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
Affected products
projectcapsule · capsuleRelated CVEs — projectcapsule capsule
In the same product, most dangerous first.
CVE-2026-22872MEDIUMCapsule TenantResource RawItems Cluster-Scoped Resource Creation VulnerabilityEPSS 0.7%CVE-2026-61795MEDIUMCapsule: hostnameRegexHandler.OnUpdate validates stale (old) Tenant regex, allowing invalid AllowedHostnames regex to bypass webhook validationEPSS 0.6%CVE-2026-61794MEDIUMCapsule: Malformed ForbiddenAnnotations.Regex can bypass Tenant validation and trigger namespace admission panicEPSS 0.6%CVE-2025-55205CRITICALCapsule tenant owners with "patch namespace" permission can hijack system namespaces labelEPSS 0.5%CVE-2026-55636MEDIUMCapsule: Incomplete fix of CVE-2026-30963: singular/plural typo leaves namespaces/finalize unprotectedEPSS 0.4%CVE-2026-61672HIGHCapsule: Tenant owner bypasses Capsule's forbidden namespace/service/node label and annotation enforcementEPSS 0.3%