{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-19194","assignerOrgId":"67fedba0-ff2e-4543-ba5b-aa93e87718cc","state":"PUBLISHED","assignerShortName":"HashiCorp","dateReserved":"2026-08-06T20:09:20.603Z","datePublished":"2026-11-13T21:17:56.457Z","dateUpdated":"2026-11-13T21:30:34.534Z"},"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","platforms":["64 bit","32 bit","x86","ARM","MacOS","Windows","Linux"],"product":"Shared library","repo":"https://github.com/hashicorp/cap","vendor":"HashiCorp","versions":[{"lessThan":"0.14.0","status":"affected","version":"0","versionType":"semver"}]}],"credits":[{"lang":"en","value":"This issue was reported to HashiCorp by anaximand3r and doyensec-mohamed."}],"descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<p>The HashiCorp cap JWT validation library before version 0.14.0 is vulnerable to a claims validation bypass that may cause downstream applications to make authorization decisions using claim values different from those validated. Exploitation requires attacker-controlled claims in a JWT signed by a key trusted by the application. This vulnerability (CVE-2026-19194) is fixed in cap 0.14.0.</p><br/>"}],"value":"The HashiCorp cap JWT validation library before version 0.14.0 is vulnerable to a claims validation bypass that may cause downstream applications to make authorization decisions using claim values different from those validated. Exploitation requires attacker-controlled claims in a JWT signed by a key trusted by the application. This vulnerability (CVE-2026-19194) is fixed in cap 0.14.0."}],"impacts":[{"capecId":"CAPEC-71","descriptions":[{"lang":"en","value":"CAPEC-71: Using Unicode Encoding to Bypass Validation Logic"}]}],"metrics":[{"cvssV3_1":{"baseScore":5.9,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-178","description":"CWE-178: Improper Handling of Case Sensitivity","lang":"en","type":"CWE"}]}],"providerMetadata":{"orgId":"67fedba0-ff2e-4543-ba5b-aa93e87718cc","shortName":"HashiCorp","dateUpdated":"2026-11-13T21:17:56.457Z"},"references":[{"url":"https://discuss.hashicorp.com/t/hcsec-2026-60-cap-jwt-claims-validation-bypass-using-non-canonical-claim-names/78258"}],"source":{"advisory":"HCSEC-2026-60","discovery":"EXTERNAL"},"title":"CAP JWT claims validation bypass using non-canonical claim names"},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-11-13T21:30:24.747414Z","id":"CVE-2026-19194","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-11-13T21:30:34.534Z"}}]}}