{"id":"USN-3407-1","summary":"pyjwt vulnerability","details":"It was discovered that a vulnerability in PyJWT doesn't check\ninvalid_strings properly for some public keys. A remote attacker\ncould take advantage of a key confusion to craft JWTs from scratch.\n","modified":"2026-02-10T04:41:12Z","published":"2017-08-30T18:52:29Z","related":["UBUNTU-CVE-2017-11424"],"upstream":["CVE-2017-11424","UBUNTU-CVE-2017-11424"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-3407-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2017-11424"}],"affected":[{"package":{"name":"pyjwt","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/pyjwt@1.3.0-1ubuntu0.1?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.3.0-1ubuntu0.1"}]}],"versions":["1.0.0-0ubuntu1","1.3.0-1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"python-jwt","binary_version":"1.3.0-1ubuntu0.1"},{"binary_name":"python3-jwt","binary_version":"1.3.0-1ubuntu0.1"}]},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:16.04:LTS","cves":[{"id":"CVE-2017-11424","severity":[{"score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-3407-1.json"}}],"schema_version":"1.7.3"}