CVE-2024-29370: Duplicate Advisory Denial of Service Vulnerability

MODERATE
Advisory Identifier: GHSA-h4pw-wxh7-4vjj
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CVSS 5.3
CWE-409
Published
Advisory Summary

CVE-2024-29370 is a MODERATE (CVSS 5.3) denial of service vulnerability (CWE-409: Improper Handling of Highly Compressed Data (Data Amplification)) affecting Duplicate Advisory libraries in the PyPI ecosystem. The issue involves python-jose denial of service via compressed jwe content. Remediation is available by upgrading affected packages to version 3.4.0.

CVE-2024-29370 at a Glance

CVE Identifier CVE-2024-29370
GHSA Identifier GHSA-h4pw-wxh7-4vjj
Severity MODERATE
CVSS v3.1 Base Score 5.3
CWE Classification CWE-409: Improper Handling of Highly Compressed Data (Data Amplification)
Affected Product Duplicate Advisory
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 5.3

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity None (I:N)
Availability Low (A:L)

How to Fix CVE-2024-29370

To remediate this vulnerability, upgrade all affected Duplicate Advisory dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

python-jose fixed: 3.4.0 
pip install python-jose>=3.4.0
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

pip show python-jose

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2024-29370, inspect your installed packages using pip:

pip show python-jose

Analyze the terminal output to locate any version of Duplicate Advisory in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 3.4.0), your application is affected.

Note: The pip show python-jose command checks currently installed packages in your active Python environment.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-409: Improper Handling of Highly Compressed Data (Data Amplification), where the product does not handle or incorrectly handles a compressed input with a very high compression ratio that produces a large output. In Duplicate Advisory, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

### Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-cjwg-qfpm-7377. This link is maintained to preserve external references. ### Original 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.

CVE-2024-29370 Affected Duplicate Advisory Versions

1 component(s)
Fixed Versions:
3.4.0
Product / Package Ecosystem Affected Versions Fixed Version
python-jose
pypi/python-jose
PyPI
< 3.4.0
3.4.0

References

NVD — CVE-2024-29370 NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-29370
Duplicate Advisory Source Repository REPOSITORY
https://github.com/mpdavis/python-jose/issues/344
Security Fix Commit FIX COMMIT
https://github.com/mpdavis/python-jose/commit/483529ee93a3ab510ab579d4d4cc644dba926ade
Duplicate Advisory Release RELEASE
https://github.com/mpdavis/python-jose/releases/tag/3.4.0
Duplicate Advisory Source Repository REPOSITORY
https://github.com/pypa/advisory-database/tree/main/vulns/python-jose/PYSEC-2025-185.yaml

Frequently Asked Questions

What is CVE-2024-29370?
CVE-2024-29370 is a security vulnerability in Duplicate Advisory involving python-jose denial of service via compressed JWE content under CWE-409: Improper Handling of Highly Compressed Data (Data Amplification).
Which Duplicate Advisory versions are affected?
Affected versions include releases prior to 3.4.0 across affected packages: python-jose.
What version fixes CVE-2024-29370?
Upgrading to 3.4.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is python-jose affected?
Yes, python-jose is affected in releases prior to 3.4.0. Upgrade your dependency to 3.4.0 or later.
What is the CVSS score of CVE-2024-29370?
CVE-2024-29370 has a CVSS v3.1 base score of 5.3 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
What CWE is associated with CVE-2024-29370?
CVE-2024-29370 is classified under CWE-409: Improper Handling of Highly Compressed Data (Data Amplification) (The product does not handle or incorrectly handles a compressed input with a very high compression ratio that produces a large output.).
How can I check PyPI dependencies for CVE-2024-29370?
Run the dependency tree command: 'pip show python-jose'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-h4pw-wxh7-4vjj",
  "modified" : "2026-06-08T19:13:21Z",
  "published" : "2025-12-17T18:31:33Z",
  "withdrawn" : "2025-12-18T15:51:07Z",
  "aliases" : [ "CVE-2024-29370" ],
  "summary" : "Duplicate Advisory: python-jose denial of service via compressed JWE content",
  "details" : "### Duplicate Advisory\nThis advisory has been withdrawn because it is a duplicate of GHSA-cjwg-qfpm-7377. This link is maintained to preserve external references.\n\n### Original Description\n\nIn 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.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "python-jose"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "3.4.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2024-29370"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/mpdavis/python-jose/issues/344"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/mpdavis/python-jose/commit/483529ee93a3ab510ab579d4d4cc644dba926ade"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/mpdavis/python-jose/releases/tag/3.4.0"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pypa/advisory-database/tree/main/vulns/python-jose/PYSEC-2025-185.yaml"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-409" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-12-18T15:51:07Z",
    "nvd_published_at" : "2025-12-17T16:16:04Z"
  }
}