{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-110720","assignerOrgId":"67fedba0-ff2e-4543-ba5b-aa93e87718cc","state":"PUBLISHED","assignerShortName":"HashiCorp","dateReserved":"2026-10-14T14:44:47.621Z","datePublished":"2026-10-26T18:38:14.209Z","dateUpdated":"2026-10-26T19:38:28.240Z"},"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","platforms":["64 bit","32 bit","x86","ARM","MacOS","Windows","Linux"],"product":"Tooling","repo":"https://github.com/hashicorp/consul-k8s","vendor":"HashiCorp","versions":[{"changes":[{"at":"1.8.18","status":"unaffected"}],"lessThan":"2.0.4","status":"affected","version":"0.42.0","versionType":"semver"}]}],"credits":[{"lang":"en","value":"This issue was reported to HashiCorp by Elias Hasas (GitHub: zer0d4y5)."}],"descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<p>Consul-k8s versions 0.42.0 and later are vulnerable to a cross-namespace authorization bypass in component ACL binding rules that may allow an attacker to obtain elevated Consul privileges. This vulnerability (CVE-2026-110720) is fixed in consul-k8s 2.1.0 and 1.8.18.</p><br/>"}],"value":"Consul-k8s versions 0.42.0 and later are vulnerable to a cross-namespace authorization bypass in component ACL binding rules that may allow an attacker to obtain elevated Consul privileges. This vulnerability (CVE-2026-110720) is fixed in consul-k8s 2.1.0 and 1.8.18."}],"impacts":[{"capecId":"CAPEC-1","descriptions":[{"lang":"en","value":"CAPEC-1: Accessing Functionality Not Properly Constrained by ACLs"}]}],"metrics":[{"cvssV3_1":{"baseScore":9.9,"baseSeverity":"CRITICAL","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-863","description":"CWE-863: Incorrect Authorization","lang":"en","type":"CWE"}]}],"providerMetadata":{"orgId":"67fedba0-ff2e-4543-ba5b-aa93e87718cc","shortName":"HashiCorp","dateUpdated":"2026-10-26T18:38:14.209Z"},"references":[{"url":"https://discuss.hashicorp.com/t/hcsec-2026-50-consul-k8s-vulnerable-to-a-cross-namespace-authorization-bypass-in-component-acl-binding-rules/77915"}],"source":{"advisory":"HCSEC-2026-50","discovery":"EXTERNAL"},"title":"Consul-k8s vulnerable to a cross-namespace authorization bypass in component ACL binding rules"},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2026-110720","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"version":"2.0.3","timestamp":"2026-10-26T19:06:05.963836Z"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-10-26T19:38:28.240Z"}}]}}