{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-10-28T21:30:57.530","vulnerabilities":[{"cve":{"id":"CVE-2026-102946","sourceIdentifier":"security-advisories@github.com","published":"2026-10-15T19:17:13.423","lastModified":"2026-10-15T20:17:05.407","vulnStatus":"Deferred","cveTags":[],"descriptions":[{"lang":"en","value":"joserfc is a Python library that provides an implementation of several JSON Object Signing and Encryption (JOSE) standards. Prior to 1.7.4, joserfc.jws.deserialize_json() accepts a JWS General JSON Serialization with an empty signatures array as authenticated. The verify_general_json() loop performs no iterations for the empty array and returns success because no signature check failed, allowing an attacker without a signing key to supply an arbitrary payload that relying applications may treat as authentic. The issue affects the General JSON Serialization path; compact JWS and JWT decoding, Flattened JSON serialization, and JWE JSON processing do not follow this vulnerable path. This issue is fixed in version 1.7.4."}],"affected":[{"source":"security-advisories@github.com","affectedData":[{"vendor":"authlib","product":"joserfc","versions":[{"version":"< 1.7.4","status":"affected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","baseScore":9.1,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"NONE"},"exploitabilityScore":3.9,"impactScore":5.2}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-10-15T19:52:38.661517Z","id":"CVE-2026-102946","options":[{"exploitation":"poc"},{"automatable":"yes"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-290"},{"lang":"en","value":"CWE-345"},{"lang":"en","value":"CWE-347"}]}],"references":[{"url":"https://github.com/authlib/joserfc/commit/f409f8f058225d7686acab6546c94593e4c1bfbe","source":"security-advisories@github.com"},{"url":"https://github.com/authlib/joserfc/releases/tag/1.7.4","source":"security-advisories@github.com"},{"url":"https://github.com/authlib/joserfc/security/advisories/GHSA-4pp3-559j-c5c2","source":"security-advisories@github.com"},{"url":"https://github.com/authlib/joserfc/security/advisories/GHSA-4pp3-559j-c5c2","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}]}}]}