{"id":"CVE-2026-61794","published":"2026-09-18T17:16:58.700","lastModified":"2026-09-24T21:25:27.050","description":"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 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.","cvssScore":6.8,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H","cwes":["CWE-20"],"vendors":[],"products":[],"references":[{"url":"https://github.com/projectcapsule/capsule/commit/8d89d6865df6f41c7faa22fc9e807a57b01bfd0e","tags":[]},{"url":"https://github.com/projectcapsule/capsule/pull/1983","tags":[]},{"url":"https://github.com/projectcapsule/capsule/releases/tag/v0.13.7","tags":[]},{"url":"https://github.com/projectcapsule/capsule/security/advisories/GHSA-gxjc-74v5-3vx3","tags":[]},{"url":"https://github.com/projectcapsule/capsule/security/advisories/GHSA-gxjc-74v5-3vx3","tags":[]}],"exploitRefs":[{"url":"https://github.com/projectcapsule/capsule/commit/8d89d6865df6f41c7faa22fc9e807a57b01bfd0e","tags":[]},{"url":"https://github.com/projectcapsule/capsule/pull/1983","tags":[]},{"url":"https://github.com/projectcapsule/capsule/releases/tag/v0.13.7","tags":[]},{"url":"https://github.com/projectcapsule/capsule/security/advisories/GHSA-gxjc-74v5-3vx3","tags":[]},{"url":"https://github.com/projectcapsule/capsule/security/advisories/GHSA-gxjc-74v5-3vx3","tags":[]}],"hasPoc":true,"ai":null}