CVE-2021-46743

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Summary

CVECVE-2021-46743
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2022-03-29 07:15:00 UTC
Updated2022-04-08 15:14:00 UTC
DescriptionIn 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.

Risk And Classification

Problem Types: CWE-843

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Google Firebase Php-jwt All All All All

References

ReferenceSourceLinkTags
Possibility of Reintroducing HS256/RSA256 Type Confusion · Issue #351 · firebase/php-jwt · GitHub MISC github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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