- Description
- fast-jwt provides fast JSON Web Token (JWT) implementation. In 6.1.0 and earlier, the publicKeyPemMatcher regex in fast-jwt/src/crypto.js uses a ^ anchor that is defeated by any leading whitespace in the key string, re-enabling the exact same JWT algorithm confusion attack that CVE-2023-48223 patched.
- Source
- security-advisories@github.com
- NVD status
- Analyzed
- Products
- fast-jwt
CVSS 3.1
- Type
- Secondary
- Base score
- 9.1
- Impact score
- 5.2
- Exploitability score
- 3.9
- Vector string
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- Severity
- CRITICAL
- security-advisories@github.com
- CWE-327
- Hype score
- Not currently trending
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"matchCriteriaId": "FD2BA255-333A-4CF2-9B8E-C685DF7A11A9",
"versionEndExcluding": "6.2.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
]