PyJWT
CriticalPyPICVE-2026-102268
What to do
Update PyJWT to 2.14.0 or later.
pip install "PyJWT>=2.14.0"
A cryptographic weakness flaw affects the PyPI package PyJWT. Affected versions: <= 2.13.0. Fixed from version 2.14.0. CVSS score 9.1.
What the flaw allows: An encryption guarantee is weaker than advertised.
- Package
- PyJWT
- Ecosystem
- PyPI (Python)
- Class
- Cryptographic weakness
- Affected versions
- <= 2.13.0
- CVSS
- 9.1
- Published on
- September 29, 2026
Sources
Entry built automatically from the cited security advisory, with no model rewriting. Acknowledged by the organisation or vendor, notified to an authority, or established by two independent sources.