CVE-2021-46743
- Source
- https://cve.org/CVERecord?id=CVE-2021-46743
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-46743.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2021-46743
- Aliases
- Published
- 2022-03-29T07:15:07Z
- Modified
- 2026-08-27T08:15:13Z
- Severity
-
- 9.1 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N CVSS Calculator
- Summary
- [none]
- Details
-
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.
- References
Affected packages
Git / github.com/googleapis/php-jwt
Affected ranges
- Type
- GIT
- Repo
- https://github.com/googleapis/php-jwt
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixed
- Database specific
-
Show details
{ "cpe": "cpe:2.3:a:google:firebase_php-jwt:*:*:*:*:*:*:*:*", "extracted_events": [ { "introduced": "0" }, { "fixed": "6.0.0" } ], "source": "CPE_RANGE" }