{"affected":[{"defaultStatus":"unaffected","platforms":["64 bit","32 bit","x86","ARM","MacOS","Windows","Linux"],"product":"Shared library","source":"CNA: HashiCorp","vendor":"HashiCorp","versions":[{"lessThan":"0.14.0","status":"affected","version":"0","versionType":"semver"}]}],"cveId":"CVE-2026-19194","cwes":["CWE-178"],"description":"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.","epss":null,"exploits":[],"kev":null,"metrics":[{"score":5.9,"severity":"medium","source":"CNA: HashiCorp","vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N","version":"3.1"},{"score":5.9,"severity":"medium","source":"NVD: security@hashicorp.com","vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N","version":"3.1"}],"modifiedAt":1794608245140,"publishedAt":1794604676457,"references":[{"source":"CNA: HashiCorp","tags":[],"url":"https://discuss.hashicorp.com/t/hcsec-2026-60-cap-jwt-claims-validation-bypass-using-non-canonical-claim-names/78258"},{"source":"security@hashicorp.com","tags":[],"url":"https://discuss.hashicorp.com/t/hcsec-2026-60-cap-jwt-claims-validation-bypass-using-non-canonical-claim-names/78258"}],"remediation":[],"revision":"d1c779651abac9f571ada92f16073c302f1eb1eb5cda194ad4f86ea7d08044ff","sources":[{"modifiedAt":1794605434534,"name":"CNA: HashiCorp","retrievedAt":1794607791666,"url":"https://www.cve.org/CVERecord?id=CVE-2026-19194"},{"modifiedAt":1794608245140,"name":"NVD","retrievedAt":1794615617063,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-19194"}],"ssvc":{"assessedAt":1794605424747,"automatable":"no","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"total"},"status":"published","title":"CAP JWT claims validation bypass using non-canonical claim names","updatedAt":1794615617063}