Denial-of-Service Vulnerability in Python-JOSE by MPDavis
CVE-2024-29370

5.3MEDIUM

Key Information:

Vendor

MPDavis

Status
python-jose
Vendor
CVE Published:
17 December 2025

What is CVE-2024-29370?

A vulnerability exists in python-jose version 3.3.0 where an attacker can exploit the JWE (JSON Web Encryption) decryption process. By creating a specially crafted JWE token that leverages an extremely high compression ratio, the attacker forces the server to allocate excessive memory and processing resources. This can lead to a Denial-of-Service (DoS) condition as the system struggles to handle the malicious input during decompression, potentially disrupting service availability.

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References

https://github.com/mpdavis/python-jose/issues/344

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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