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CVE-2026-33204

SimpleJWT has an Unauthenticated Denial of Service via JWE header tampering PUBLISHED

Description (CNA)

SimpleJWT is a simple JSON web token library written in PHP. Prior to version 1.1.1, an unauthenticated attacker can perform a Denial of Service via JWE header tampering when PBES2 algorithms are used. Applications that call JWE::decrypt() on attacker-controlled JWEs using PBES2 algorithms are affected. This issue has been patched in version 1.1.1.

Affected (CNA)

Vendor / productVersions
kelvinmo / simplejwtaffected < 1.1.1

CWE

CWE-400

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.