Improper input validation in Nearform Fast-jwt
CVE-2023-48223
fast-jwt provides fast JSON Web Token (JWT) implementation. Prior to version 3.3.2, the fast-jwt library does not properly prevent JWT algorithm confusion for all public key types. The 'publicKeyPemMatcher' in 'fast-jwt/src/crypto.js' does…
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
EPSS: 0.007 (73.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N.
Affected products
- Nearform Fast-jwt — versions < 3.3.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- https://github.com/nearform/fast-jwt/security/advisories/GHSA-c2ff-88x2-x9pg (x_refsource_CONFIRM)
- https://github.com/nearform/fast-jwt/blob/master/src/crypto.js#L29 (x_refsource_MISC)
- https://github.com/nearform/fast-jwt/releases/tag/v3.3.2 (x_refsource_MISC)
Frequently asked questions
- What is CVE-2023-48223?
- CVE-2023-48223 is a medium-severity vulnerability in Nearform Fast-jwt, classified under Improper Input Validation. CVSS score: 5.9/10. Published 2023-11-20.
- How severe is CVE-2023-48223?
- Medium severity. CVSS v3 base score is 5.9 out of 10.
- Is CVE-2023-48223 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.