{"cve":"CVE-2018-0114","nvd":{"published":"2018-01-04T06:29:00.417","modified":"2026-06-17T01:29:35.550","status":"Modified","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","score":7.5},"cwes":["CWE-347"],"references":["http://www.securityfocus.com/bid/102445","https://github.com/cisco/node-jose/blob/master/CHANGELOG.md","https://github.com/zi0Black/POC-CVE-2018-0114","https://tools.cisco.com/security/center/viewAlert.x?alertId=56326","https://www.exploit-db.com/exploits/44324/"],"products":["cisco:node-jose"],"source":"nvd","synced_at":"2026-10-19T20:47:56.471723566+00:00"},"epss":{"cve":"CVE-2018-0114","score":0.42651,"percentile":0.98712,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-jfxm-w8g2-4rcv","url":"https://osv.dev/vulnerability/GHSA-jfxm-w8g2-4rcv","summary":"Cisco node-jose improper validation of JWT signature","modified":"2023-11-08T03:59:30.230514Z","packages":[{"ecosystem":"npm","name":"node-jose","purl":"pkg:npm/node-jose","ranges":["<0.11.0"],"fixed":["0.11.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}