{"id":"CVE-2026-61794","title":"Capsule is a multi-tenancy and policy-based framework for Kubernetes","summary":"Capsule is a multi-tenancy and policy-based framework for Kubernetes. From 0.13.0 until 0.13.7, the Tenant update validation in internal/webhook/tenant/validation/forbidden_annotations_regex.go compiles ForbiddenLabels.Regex for both the…","severity":"medium","cvss":6.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H","cwe":["CWE-20"],"vendor":"projectcapsule","product":"capsule","affected":["capsule >= 0.13.0, < 0.13.7"],"patched":["github.com/projectcapsule/capsule 0.13.7"],"published":"2026-09-18","updated":"2026-09-24","sourceUpdated":"2026-09-24T21:25:27.050","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-61794","references":[{"url":"https://github.com/projectcapsule/capsule/commit/8d89d6865df6f41c7faa22fc9e807a57b01bfd0e","label":"security-advisories@github.com"},{"url":"https://github.com/projectcapsule/capsule/pull/1983","label":"security-advisories@github.com"},{"url":"https://github.com/projectcapsule/capsule/releases/tag/v0.13.7","label":"security-advisories@github.com"},{"url":"https://github.com/projectcapsule/capsule/security/advisories/GHSA-gxjc-74v5-3vx3","label":"security-advisories@github.com"},{"url":"https://github.com/projectcapsule/capsule/security/advisories/GHSA-gxjc-74v5-3vx3","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"},{"url":"https://github.com/advisories/GHSA-gxjc-74v5-3vx3"},{"url":"https://github.com/projectcapsule/capsule"}],"tags":["nvd","cve.org","exploit-available","ghsa","go","osv"],"epss":0.00587,"epssPercentile":0.47889,"aliases":["GHSA-gxjc-74v5-3vx3","GO-2026-6521"],"ecosystem":"go","exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-22T14:54:51.882379Z"},"scores":{"nvd":6.8,"ghsa":4.9,"cna":6.8,"osv":4.9},"ingestedAt":"2026-09-18T16:45:41.407Z","slug":"CVE-2026-61794","body":"## Overview\n\nCapsule is a multi-tenancy and policy-based framework for Kubernetes. From 0.13.0 until 0.13.7, the Tenant update validation in internal/webhook/tenant/validation/forbidden_annotations_regex.go compiles ForbiddenLabels.Regex for both the labels and annotations checks instead of validating ForbiddenAnnotations.Regex. An administrator who can update a Tenant can therefore persist a malformed ForbiddenAnnotations.Regex while leaving the labels expression valid. Namespace creation or update later passes the stored expression through pkg/api/forbidden_list.go, where regexp.MustCompile can panic during forbidden metadata validation and deny namespace operations for the affected tenant. This issue is fixed in version 0.13.7.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Package advisory (CVE-2026-61794)\n\nAffected packages:\n\n- `github.com/projectcapsule/capsule >= 0.13.0, < 0.13.7`\n\nPatched in:\n\n- `github.com/projectcapsule/capsule 0.13.7`\n\nSource: https://github.com/advisories/GHSA-gxjc-74v5-3vx3","depth":"twilight","depthScore":50,"depthScoreParts":{"impact":37.4,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":209080,"id":"CVE-2026-61794","ts":1790089536074,"field":"exploit_available","old":"false","new":"true"}]}