{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-61794", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-07-10T20:06:05.617Z", "datePublished": "2026-09-18T16:26:18.669Z", "dateUpdated": "2026-09-22T14:55:27.246Z"}, "containers": {"cna": {"title": "Capsule: Malformed ForbiddenAnnotations.Regex can bypass Tenant validation and trigger namespace admission panic", "problemTypes": [{"descriptions": [{"cweId": "CWE-20", "lang": "en", "description": "CWE-20: Improper Input Validation", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.8, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "HIGH", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H", "version": "3.1"}}], "references": [{"name": "https://github.com/projectcapsule/capsule/security/advisories/GHSA-gxjc-74v5-3vx3", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/projectcapsule/capsule/security/advisories/GHSA-gxjc-74v5-3vx3"}, {"name": "https://github.com/projectcapsule/capsule/pull/1983", "tags": ["x_refsource_MISC"], "url": "https://github.com/projectcapsule/capsule/pull/1983"}, {"name": "https://github.com/projectcapsule/capsule/commit/8d89d6865df6f41c7faa22fc9e807a57b01bfd0e", "tags": ["x_refsource_MISC"], "url": "https://github.com/projectcapsule/capsule/commit/8d89d6865df6f41c7faa22fc9e807a57b01bfd0e"}, {"name": "https://github.com/projectcapsule/capsule/releases/tag/v0.13.7", "tags": ["x_refsource_MISC"], "url": "https://github.com/projectcapsule/capsule/releases/tag/v0.13.7"}], "affected": [{"vendor": "projectcapsule", "product": "capsule", "versions": [{"version": ">= 0.13.0, < 0.13.7", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-09-18T16:26:18.669Z"}, "descriptions": [{"lang": "en", "value": "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."}], "source": {"advisory": "GHSA-gxjc-74v5-3vx3", "discovery": "UNKNOWN"}}, "adp": [{"references": [{"url": "https://github.com/projectcapsule/capsule/security/advisories/GHSA-gxjc-74v5-3vx3", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-09-22T14:54:51.882379Z", "id": "CVE-2026-61794", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-22T14:55:27.246Z"}}]}}

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