gree/jose - "None" Algorithm treated as valid in tokens
Priority LOW 38CWE-327Published · Updated
Key facts
- Attack vector
- —
- Privileges required
- —
- User interaction
- —
- Attack complexity
- —
- Impact type
- Information disclosure, Security bypass
- Confidentiality · integrity · availability
- —
- Fix status
- Fixed
No CVSS vector from any source. Fix status from GitHub. Impact type from CWE-327 and CWE-347.
Summary
Several widely-used JSON Web Token (JWT) libraries, including node-jsonwebtoken, pyjwt, namshi/jose, php-jwt, and jsjwt, are affected by critical vulnerabilities that could allow attackers to bypass the verification step when using asymmetric keys (RS256, RS384, RS512, ES256, ES384, ES512).
Why it matters now
Fix Fixed gree/jose (Packagist): 2.2.1
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | gree/jose (Packagist) | before 2.2.1 | 2.2.1 | Patch available | GHSA-9gxv-x7rp-r2hc |
- gree/jose (Packagist) Vendor— Affected before 2.2.1 Fixed in 2.2.1 Patch available GHSA-9gxv-x7rp-r2hc
Remediation
- Fix · GHSA-9gxv-x7rp-r2hc gree/jose (Packagist) Fixed in 2.2.1 Advisory →
Timeline
- 2026-10-03 Threatist record created from GHSA-9gxv-x7rp-r2hc
References
Other 5
- https://auth0.com/blog/2015/03/31/critical-vulnerabilities-in-json-web-token-libraries
- https://auth0.com/blog/critical-vulnerabilities-in-json-web-token-libraries
- https://github.com/FriendsOfPHP/security-advisories/blob/master/gree/jose/2016-08-30.yaml
- https://github.com/nov/jose-php
- https://github.com/nov/jose-php/compare/2.2.0...2.2.1
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences