In python-jose 3.3.0 (specifically jwe.decrypt), a vulnerability allows an attacker to cause a Denial-of-Service (DoS) condition by crafting a malicious JSON Web Encryption (JWE) token with an exceptionally high compression ratio. When this token is processed by the server, it results in significant memory allocation and processing time during decompression.
Advisories
Source ID Title
Github GHSA Github GHSA GHSA-h4pw-wxh7-4vjj Duplicate Advisory: python-jose denial of service via compressed JWE content
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Tue, 06 Jan 2026 00:15:00 +0900

Type Values Removed Values Added
CPEs cpe:2.3:a:python-jose_project:python-jose:3.3.0:*:*:*:*:*:*:*

Thu, 18 Dec 2025 21:15:00 +0900

Type Values Removed Values Added
Title python-jose: python-jose: Denial-of-Service via malicious JSON Web Encryption (JWE) token decompression
References
Metrics threat_severity

None

threat_severity

Moderate


Thu, 18 Dec 2025 19:00:00 +0900

Type Values Removed Values Added
First Time appeared Python-jose Project
Python-jose Project python-jose
Vendors & Products Python-jose Project
Python-jose Project python-jose

Thu, 18 Dec 2025 02:30:00 +0900

Type Values Removed Values Added
Weaknesses CWE-409
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L'}


Thu, 18 Dec 2025 01:00:00 +0900

Type Values Removed Values Added
Description In python-jose 3.3.0 (specifically jwe.decrypt), a vulnerability allows an attacker to cause a Denial-of-Service (DoS) condition by crafting a malicious JSON Web Encryption (JWE) token with an exceptionally high compression ratio. When this token is processed by the server, it results in significant memory allocation and processing time during decompression.
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2025-12-17T16:09:53.251Z

Reserved: 2024-03-19T00:00:00.000Z

Link: CVE-2024-29370

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2025-12-17T16:16:04.457

Modified: 2026-01-05T15:14:48.077

Link: CVE-2024-29370

cve-icon Redhat

Severity : Moderate

Publid Date: 2025-12-17T00:00:00Z

Links: CVE-2024-29370 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2025-12-18T18:57:29Z

Weaknesses