CVE-2026-33204
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
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 Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| kelvinmo | simplejwt | < 1.1.1 | affected |
Weaknesses
- CWE-400: CWE-400: Uncontrolled Resource Consumption
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: poc
- Automatable: yes
- Technical Impact: partial
References
- https://github.com/kelvinmo/simplejwt/security/advisories/GHSA-xw36-67f8-339x
- https://github.com/kelvinmo/simplejwt/releases/tag/v1.1.1
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