Medium severity5.3NVD Advisory· Published Dec 17, 2025· Updated Jun 17, 2026
CVE-2024-29370
CVE-2024-29370
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.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
python-josePyPI | < 3.4.0 | 3.4.0 |
Affected products
3- python-jose/python-josedescription
- cpe:2.3:a:python-jose_project:python-jose:3.3.0:*:*:*:*:*:*:*
Patches
Vulnerability mechanics
References
6- github.com/mpdavis/python-jose/issues/344nvdExploitIssue TrackingPatchWEB
- github.com/advisories/GHSA-h4pw-wxh7-4vjjghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2024-29370ghsaADVISORY
- github.com/mpdavis/python-jose/commit/483529ee93a3ab510ab579d4d4cc644dba926adeghsaWEB
- github.com/mpdavis/python-jose/releases/tag/3.4.0ghsaWEB
- github.com/pypa/advisory-database/tree/main/vulns/python-jose/PYSEC-2025-185.yamlghsaWEB
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