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ALSA-2024:9281 — Moderate: python-jwcrypto security update

Affected: AlmaLinux:9: python3-jwcrypto

The python-jwcrypto package provides Python implementations of the JSON Web Key (JWK), JSON Web Signature (JWS), JSON Web Encryption (JWE), and JSON Web Token (JWT) JOSE (JSON Object Signing and Encryption) standards.

Security Fix(es):

* JWCrypto: denail of service Via specifically crafted JWE (CVE-2023-6681)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section.

bdu:2025-16171

certfr-2024-avi-0145 — De multiples vulnérabilités ont été découvertes dans les produits IBM. Certaines d'entre el…

certfr-2024-avi-0145

EUVD-2026-273571

fkie_cve-2023-6681

A vulnerability was found in JWCrypto. This flaw allows an attacker to cause a denial of service (DoS) attack and possible password brute-force and dictionary attacks to be more resource-intensive. This issue can result in a large amount of computational consumption, causing a denial of service attack.

GHSA-cw2r-4p82-qv79 — DoS with algorithms that use PBKDF2 due to unbounded PBES2 Count value

Affected: PyPI: jwcrypto

### Impact Denial of Service, Applications that allow the use of the PBKDF2 algorithm.

### Patches A [patch](https://github.com/latchset/jwcrypto/commit/d2655d370586cb830e49acfb450f87598da60be8) is available that sets the maximum number of default rounds.

### Workarounds Applications that do not need to use PBKDF2 should simply specify the algorithms use and exclude it from the list. Applications that need to use the algorithm should upgrade to the new version that allows to set a maximum rounds number.

### Acknowledgement The issues was reported by Jingcheng Yang and Jianjun Chen from Sichuan University and Zhongguancun Lab

gsd-2023-6681

OESA-2024-1195 — python-jwcrypto security update

Affected: openEuler:22.03-LTS-SP1: python-jwcrypto

Implements JWK, JWS, JWE specifications with python-cryptography Security Fix(es): A vulnerability was found in JWCrypto. This flaw allows an attacker to cause a denial of service (DoS) attack and possible password brute-force and dictionary attacks to be more resource-intensive. This issue can result in a large amount of computational consumption, causing a denial of service attack.(CVE-2023-6681)

PYSEC-2024-104

Affected: PyPI: jwcrypto

RHSA-2024:3267 — Red Hat Security Advisory: idm:DL1 and idm:client security update

JWCrypto: denail of service Via specifically crafted JWE python-jwcrypto: malicious JWE token can cause denial of service

RHSA-2024:9281 — Red Hat Security Advisory: python-jwcrypto security update

JWCrypto: denail of service Via specifically crafted JWE

UBUNTU-CVE-2023-6681

Affected: Ubuntu:16.04:LTS: python-jwcrypto, Ubuntu:18.04:LTS: python-jwcrypto, Ubuntu:20.04:LTS: python-jwcrypto, Ubuntu:22.04:LTS: python-jwcrypto, Ubuntu:24.04:LTS: python-jwcrypto, Ubuntu:25.10: python-jwcrypto, Ubuntu:26.04:LTS: python-jwcrypto

WID-SEC-W-2024-3409 — Red Hat Enterprise Linux: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in Red Hat Enterprise Linux ausnutzen, um einen Denial-of-Service-Zustand zu erzeugen, vertrauliche Informationen preiszugeben und Daten zu manipulieren.