{"id":"UBUNTU-CVE-2021-3127","details":"NATS Server 2.x before 2.2.0 and JWT library before 2.0.1 have Incorrect Access Control because Import Token bindings are mishandled.","modified":"2025-10-24T04:49:10Z","published":"2021-03-16T20:15:00Z","upstream":["CVE-2021-3127"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-3127"},{"type":"REPORT","url":"https://www.openwall.com/lists/oss-security/2021/03/16/1"},{"type":"REPORT","url":"https://www.openwall.com/lists/oss-security/2021/03/16/1/2"},{"type":"REPORT","url":"https://advisories.nats.io/CVE/CVE-2021-3127.txt"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2021-3127"},{"type":"REPORT","url":"https://github.com/nats-io/jwt/security/advisories/GHSA-62mh-w5cv-p88c"},{"type":"REPORT","url":"https://github.com/nats-io/jwt/pull/149"}],"affected":[{"package":{"name":"golang-github-nats-io-jwt","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/golang-github-nats-io-jwt@0.0~git20181120.285cf2c-4?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.0~git20181120.285cf2c-4"],"ecosystem_specific":{"binaries":[{"binary_name":"golang-github-nats-io-jwt-dev","binary_version":"0.0~git20181120.285cf2c-4"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-3127.json"}},{"package":{"name":"golang-github-nats-io-jwt","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/golang-github-nats-io-jwt@0.0~git20181120.285cf2c-4.1?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.0~git20181120.285cf2c-4.1"],"ecosystem_specific":{"binaries":[{"binary_name":"golang-github-nats-io-jwt-dev","binary_version":"0.0~git20181120.285cf2c-4.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-3127.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"type":"Ubuntu","score":"medium"}]}