PyPI/jwcrypto CVE-2026-39373: medium 5.3, EPSS 0.29%
JWCrypto implements JWK, JWS, and JWE specifications using python-cryptography. Prior to 1.5.7, an unauthenticated attacker can exhaust server memory by sending crafted JWE tokens with ZIP compression
Action: Upgrade jwcrypto to 1.5.7 or later.
pip install jwcrypto==1.5.7Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 1.5.7 | - |
Fixed versions
| 1.5.7 |
Sources
CVE-2026-39373 · published · modified · JSON