CVE-2026-65834

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-65834", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-07-22T23:16:47.753Z", "datePublished": "2026-07-30T19:48:55.027Z", "dateUpdated": "2026-07-31T11:29:43.998Z"}, "containers": {"cna": {"title": "Capsule: CapsuleConfiguration NodeMetadata regex fields lack webhook validation, allowing MustCompile panic on all Node admission requests", "problemTypes": [{"descriptions": [{"cweId": "CWE-20", "lang": "en", "description": "CWE-20: Improper Input Validation", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-248", "lang": "en", "description": "CWE-248: Uncaught Exception", "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-68cj-mvg9-rgm2", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/projectcapsule/capsule/security/advisories/GHSA-68cj-mvg9-rgm2"}, {"name": "https://github.com/projectcapsule/capsule/releases/tag/v0.13.8", "tags": ["x_refsource_MISC"], "url": "https://github.com/projectcapsule/capsule/releases/tag/v0.13.8"}], "affected": [{"vendor": "projectcapsule", "product": "capsule", "versions": [{"version": "< 0.13.8", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-07-30T19:48:55.027Z"}, "descriptions": [{"lang": "en", "value": "Capsule is a multi-tenancy and policy-based framework for Kubernetes. Prior to 0.13.8, CapsuleConfiguration.Spec.NodeMetadata.ForbiddenLabels.Regex and CapsuleConfiguration.Spec.NodeMetadata.ForbiddenAnnotations.Regex were not validated by the configuration admission webhook, allowing a Cluster Admin to store a malformed regex that later reached regexp.MustCompile in pkg/api/forbidden_list.go through internal/webhook/node/user_metadata.go and crashed the node admission webhook on Node create, update, or patch requests. This issue is fixed in version 0.13.8."}], "source": {"advisory": "GHSA-68cj-mvg9-rgm2", "discovery": "UNKNOWN"}}, "adp": [{"references": [{"url": "https://github.com/projectcapsule/capsule/security/advisories/GHSA-68cj-mvg9-rgm2", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-07-31T11:26:23.756923Z", "id": "CVE-2026-65834", "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": "2026-07-31T11:29:43.998Z"}}]}}

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{"affected": [{"affectedData": [{"product": "capsule", "vendor": "projectcapsule", "versions": [{"status": "affected", "version": "< 0.13.8"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Capsule is a multi-tenancy and policy-based framework for Kubernetes. Prior to 0.13.8, CapsuleConfiguration.Spec.NodeMetadata.ForbiddenLabels.Regex and CapsuleConfiguration.Spec.NodeMetadata.ForbiddenAnnotations.Regex were not validated by the configuration admission webhook, allowing a Cluster Admin to store a malformed regex that later reached regexp.MustCompile in pkg/api/forbidden_list.go through internal/webhook/node/user_metadata.go and crashed the node admission webhook on Node create, update, or patch requests. This issue is fixed in version 0.13.8."}, {"lang": "es", "value": "Capsule es un framework multi-inquilino y basado en pol\u00edticas para Kubernetes. Antes de la versi\u00f3n 0.13.8, CapsuleConfiguration.Spec.NodeMetadata.ForbiddenLabels.Regex y CapsuleConfiguration.Spec.NodeMetadata.ForbiddenAnnotations.Regex no eran validados por el webhook de admisi\u00f3n de configuraci\u00f3n, permitiendo a un Administrador de Cl\u00faster almacenar una regex mal formada que luego llegaba a regexp.MustCompile en pkg/API/forbidden_list.go a trav\u00e9s de internal/webhook/node/user_metadata.go y provocaba el fallo del webhook de admisi\u00f3n de nodos en las solicitudes de creaci\u00f3n, actualizaci\u00f3n o parcheo de nodos. Este problema est\u00e1 solucionado en la versi\u00f3n 0.13.8."}], "id": "CVE-2026-65834", "lastModified": "2026-10-23T22:10:00.160", "metrics": {"cvssMetricV31": [{"cvssData": {"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"}, "exploitabilityScore": 2.3, "impactScore": 4.0, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-65834", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-07-31T11:26:23.756923Z", "version": "2.0.3"}}]}, "published": "2026-07-30T20:18:13.107", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/projectcapsule/capsule/releases/tag/v0.13.8"}, {"source": "security-advisories@github.com", "url": "https://github.com/projectcapsule/capsule/security/advisories/GHSA-68cj-mvg9-rgm2"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://github.com/projectcapsule/capsule/security/advisories/GHSA-68cj-mvg9-rgm2"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-20"}, {"lang": "en", "value": "CWE-248"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,0.13.8)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "capsule", "source": "cna", "vendor": "projectcapsule"}, "product": "capsule", "vendor": "projectcapsule"}], "created": "2026-07-30T22:45:03.742601+00:00", "updated": "2026-08-04T11:45:03.802104+00:00", "vendors": ["projectcapsule", "projectcapsule$PRODUCT$capsule"]}