CVE-2024-33663: python-jose algorithm confusion with OpenSSH ECDSA keys
Summary
CVE-2024-33663: python-jose algorithm confusion with OpenSSH ECDSA keys. Affects python-jose versions < 3.4.0. Fixed in 3.4.0. How to fix ↓
Also tracked for
- python-jose · Debian:12
The same CVE-2024-33663 is tracked separately for each ecosystem and vendor. Its fix information is the same; the package and affected versions differ.
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Background
python-jose is a Python library that provides a simple interface for handling JSON Web Tokens (JWTs). It is commonly used for authentication and authorization purposes in web applications. The library supports various algorithms for signing and encrypting JWTs, including OpenSSH ECDSA keys. However, a vulnerability has been discovered in python-jose versions up to 3.3.0, which allows for algorithm confusion with OpenSSH ECDSA keys and other key formats. This vulnerability is similar to CVE-2022-29217.
Vulnerability Detail
The algorithm confusion vulnerability in python-jose can lead to security issues when processing OpenSSH ECDSA keys and other key formats. An attacker could exploit this vulnerability to bypass security controls and perform unauthorized actions. The specific technical details of this vulnerability are not provided in the available information.
How To Fix
Latest published version: 3.5.0 as of 22 Oct 2026
pip install --upgrade "python-jose==3.5.0"Upgrading to it may include breaking changes; the version below is the minimum fixed release for this vulnerability.
If you need the minimum change
3.4.0
This is the first release that contains the fix.
pip install --upgrade "python-jose==3.4.0"Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
No workaround is mentioned in the available information.
Conclusion
The python-jose library is vulnerable to algorithm confusion with OpenSSH ECDSA keys and other key formats. Upgrading to version 3.3.1 or later is recommended to mitigate this vulnerability. For further assistance and support in vulnerability remediation, please contact DevNack.com.
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FAQ
python-jose is a Python library for handling JSON Web Tokens (JWTs) used for authentication and authorization in web applications.
The vulnerability allows for algorithm confusion with OpenSSH ECDSA keys and other key formats, potentially enabling unauthorized actions by attackers.
Yes, upgrading python-jose to version 3.3.1 or later resolves this vulnerability.
No, only versions up to 3.3.0 are affected by this vulnerability.
No specific exploits are mentioned in the available information.
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