Description
JWCrypto implements JWK, JWS, and JWE specifications using python-cryptography. Prior to version 1.5.6, an attacker can cause a denial of service attack by passing in a malicious JWE Token with a high compression ratio. When the server processes this token, it will consume a lot of memory and processing time. Version 1.5.6 fixes this vulnerability by limiting the maximum token length.
Details
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| python-jwcrypto | — | — |
References
Similar Threats
- Medium OESA-2026-1923
- Medium OESA-2026-1924
- Medium OESA-2026-1925
- Medium OESA-2026-1926
- Unknown DEBIAN-CVE-2026-39373
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