Cisco node-jose improper validation of JWT signature
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.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | node-jose | < 0.11.0 | 0.11.0 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2018-0114
- https://github.com/cisco/node-jose
- 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://web.archive.org/web/20210124130907/http://www.securityfocus.com/bid/102445
- https://www.exploit-db.com/exploits/44324
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N- Weakness (CWE)
CWE-347- Platform
- npm
- Package
node-jose- Disclosed
- 13.05.2022
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-jfxm-w8g2-4rcv - CC BY 4.0
Vulnerability history: node-jose
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 3
- First → latest
- 07.2018 02.2023
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 2
- Medium 1
Disclosures per year
- 2018: 1
- 2019: 0
- 2020: 0
- 2021: 0
- 2022: 1
- 2023: 1
- 2024: 0
- 2025: 0
- 2026: 0
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Cisco node-jose improper validation of JWT signature this entry
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