{"id":"CVE-2018-0114","details":"A vulnerability in the Cisco node-jose open source library before 0.11.0 could allow an unauthenticated, remote attacker to re-sign tokens using a key that is embedded within the token. The vulnerability is due to node-jose following the JSON Web Signature (JWS) standard for JSON Web Tokens (JWTs). This standard specifies that a JSON Web Key (JWK) representing a public key can be embedded within the header of a JWS. This public key is then trusted for verification. An attacker could exploit this by forging valid JWS objects by removing the original signature, adding a new public key to the header, and then signing the object using the (attacker-owned) private key associated with the public key embedded in that JWS header.","aliases":["GHSA-jfxm-w8g2-4rcv"],"modified":"2026-03-15T22:25:03.439715Z","published":"2018-01-04T06:29:00.417Z","references":[{"type":"ADVISORY","url":"https://www.exploit-db.com/exploits/44324/"},{"type":"ADVISORY","url":"http://www.securityfocus.com/bid/102445"},{"type":"ADVISORY","url":"https://github.com/cisco/node-jose/blob/master/CHANGELOG.md"},{"type":"FIX","url":"https://tools.cisco.com/security/center/viewAlert.x?alertId=56326"},{"type":"EVIDENCE","url":"https://github.com/zi0Black/POC-CVE-2018-0114"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/cisco/node-jose","events":[{"introduced":"0"},{"fixed":"f15bd4637c96a79e715ff90a5e479177fccb3d25"}],"database_specific":{"versions":[{"introduced":"0"},{"fixed":"0.11.0"}]}}],"versions":["0.10.0","0.3.0","0.3.1","0.4.0","0.5.0","0.5.2","0.6.0","0.7.0","0.7.1","0.8.0","0.8.1","0.9.0","0.9.1","0.9.2","0.9.3","0.9.4","0.9.5"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-0114.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"}]}