{"id":"CVE-2026-102274","revision":"6f88c54671ca4c69a7e6ec93b7128f8f","records":[{"revision":"6f88c54671ca4c69a7e6ec93b7128f8f","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-102274","aliases":[],"title":"PyJWT: Malformed RSA JWK aborts parsing of an entire JWK Set","description":"PyJWT is a Python implementation of JSON Web Token standards. From 2.9.0 until 2.14.0, PyJWKSet does not catch the plain ValueError raised for malformed RSA JWK components by RSAAlgorithm.from_jwk in  jwt/api_jwk.py. This occurs when a JWK Set contains a malformed RSA key alongside otherwise usable keys. As a result, one malformed member aborts construction of the entire PyJWKSet. Consequently, applications can experience authentication failures or request-level denial of service. This issue is fixed in version 2.14.0.","state":0,"publishedAt":"2026-09-28T20:42:28.355+00:00","modifiedAt":"2026-09-29T19:38:02.52+00:00","affected":[{"ecosystem":"Vendor product","name":"pyjwt","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"jpadilla\",\n                    \"product\": \"pyjwt\",\n                    \"versions\": [\n                        {\n                            \"version\": \">= 2.9.0, < 2.14.0\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","score":5.9,"severity":"MEDIUM"}],"references":["https://github.com/jpadilla/pyjwt/security/advisories/GHSA-w6j9-cwv2-h6wq","https://github.com/jpadilla/pyjwt/commit/8915570a0bfda9f0ff0e34e7fb09bdb9d71580cf","https://github.com/jpadilla/pyjwt/releases/tag/2.14.0"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-102274","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-102274","identifiers":["CVE-2026-102274"]},"retained":false,"historicalAffected":[]}],"coverage":[]}