{"id":"AZL-105218","summary":"CVE-2026-101918 affecting package python-jwt 2.13.0-1","details":"PyJWT is a Python implementation of JSON Web Token standards. From 2.0.0a1 until 2.15.0, PyJWT PyJWKClient.get_signing_key_from_jwt is affected because payload parser catches ValueError but not RecursionError. This occurs when an attacker-controlled recursively nested payload reaches json.loads. As a result, documented PyJWT exception handling does not contain the failure. Consequently, an unauthenticated request can raise an exception that may produce an HTTP 500 response. The advisory-defined affected implementation also includes jwt/api_jwt.py, verify_signature=False. This issue is fixed in version 2.15.0.","modified":"2026-10-03T05:35:10Z","published":"2026-09-28T21:17:13Z","upstream":["CVE-2026-101918"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-101918"}],"affected":[{"package":{"name":"python-jwt","ecosystem":"Azure Linux:3","purl":"pkg:rpm/azure-linux/python-jwt"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"2.13.0-1"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-105218.json"}}],"schema_version":"1.9.0"}