TI-2026-46912 Aliases CVE-2026-65835 GHSA-jr6p-8pjj-mfx6

Improper privilege management in projectcapsule capsule

MEDIUM 62CWE-269Published 2026-07-30 · Updated 2026-07-31

Key facts

Attack vector: Network
Privileges required: High
User interaction: None
Attack complexity: Low
Impact type: Privilege escalation, Security bypass
Confidentiality · integrity · availability: Low · Low · Low
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-269 and CWE-863.

Summary

Capsule is a multi-tenancy and policy-based framework for Kubernetes. From 0.13.0 until 0.13.8, after the incomplete CVE-2026-22872 fix, TenantResource RawItems and Generators in internal/controllers/resources/collect.go, including handleRawItem and handleGeneratorItem, did not apply the ResourceReference.LoadResources and IsNamespacedGVK cluster-scoped resource rejection guard used by NamespacedItems, allowing a Tenant Owner to create cluster-scoped resources such as ClusterRole or ValidatingWebhookConfiguration through the cluster-admin controller client. This issue is fixed in version 0.13.8.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00235 14th percentileScored 2026-11-07

Fix Fixed capsule (projectcapsule): 0.13.8github.com/projectcapsule/capsule (Go): 0.13.8

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
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
projectcapsule	capsule	0.13.0 to before 0.13.8	0.13.8	Patch available	CNA
—	github.com/projectcapsule/capsule (Go)	0.13.0 to before 0.13.8	0.13.8	Patch available	GHSA-jr6p-8pjj-mfx6

capsule Vendorprojectcapsule Affected 0.13.0 to before 0.13.8 Fixed in 0.13.8 Patch available CNA
github.com/projectcapsule/capsule (Go) Vendor— Affected 0.13.0 to before 0.13.8 Fixed in 0.13.8 Patch available GHSA-jr6p-8pjj-mfx6

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPE	Versions	Role	Vendor
cpe:2.3:a:projectcapsule:capsule::::::::	—	—	projectcapsule

cpe:2.3:a:projectcapsule:capsule:*:*:*:*:*:*:*:* Versions — — ·projectcapsule

Remediation

Fix · CNA capsule (projectcapsule) Fixed in 0.13.8
Fix · GHSA-jr6p-8pjj-mfx6 github.com/projectcapsule/capsule (Go) Fixed in 0.13.8 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2026-65835
2026-10-03 Alias added: GHSA-jr6p-8pjj-mfx6

References

Advisory 1

https://nvd.nist.gov/vuln/detail/CVE-2026-65835

Other 3

TI-2024-26614 Capsule tenant owner with "patch namespace" permission can hijack system namespaces CVSS 3.1HIGH 8.8
TI-2025-34881 Capsule tenant owners with "patch namespace" permission can hijack system namespaces label CVSS 3.1CRITICAL 9.1
TI-2026-18364 Capsule TenantResource RawItems Cluster-Scoped Resource Creation Vulnerability CVSS 4.0MEDIUM 6.9
TI-2026-44157 Capsule: Tenant owner bypasses Capsule's forbidden namespace/service/node label and annotation enforcement CVSS 3.1HIGH 7.1
TI-2026-46911 Improper input validation in projectcapsule capsule CVSS 3.1MEDIUM 6.8
TI-2026-44232 Capsule: Malformed ForbiddenAnnotations.Regex can bypass Tenant validation and trigger namespace admission panic CVSS 3.1MEDIUM 6.8

See all 11 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences