- Description
- In Firebase PHP-JWT before 6.0.0, an algorithm-confusion issue (e.g., RS256 / HS256) exists via the kid (aka Key ID) header, when multiple types of keys are loaded in a key ring. This allows an attacker to forge tokens that validate under the incorrect key. NOTE: this provides a straightforward way to use the PHP-JWT library unsafely, but might not be considered a vulnerability in the library itself.
- Source
- cve@mitre.org
- NVD status
- Modified
CVSS 3.1
- Type
- Primary
- 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
CVSS 2.0
- Type
- Primary
- Base score
- 5.8
- Impact score
- 4.9
- Exploitability score
- 8.6
- Vector string
- AV:N/AC:M/Au:N/C:P/I:P/A:N
- nvd@nist.gov
- CWE-843
- Hype score
- Not currently trending
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{
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{
"negate": false,
"cpeMatch": [
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"vulnerable": true,
"matchCriteriaId": "53E1DE57-9D25-4B98-83B6-C35BDD065D88",
"versionEndExcluding": "6.0.0"
}
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"operator": "OR"
}
]
}
]