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openSUSE-SU-2026:22073-1

Опубликовано: 09 окт. 2026
Источник: suse-cvrf

Описание

Security update for python-jwcrypto

This update for python-jwcrypto fixes the following issue:

  • CVE-2026-92091: JWK.import_key() validates the key_ops JWK member for duplicate values using a quadratic complexity algorithm, which allows attackers to cause a denial of service via excessive resource consumption (bsc#1280816).

Список пакетов

openSUSE Leap 16.0
python313-jwcrypto-1.5.6-160000.5.1

Ссылки

Описание

A flaw was found in jwcrypto. The JWK.import_key() function validates the key_ops JWK member for duplicate values using an algorithm with O(n^2) time complexity, and the length of key_ops is not bounded. A remote, unauthenticated attacker can supply a JWK with a large key_ops array to an application that passes attacker-controlled key material to a public key-import API (reachable via ECDH-ES key agreement, OIDC dynamic client registration, DPoP, or ACME account key registration, among others) to consume excessive CPU time, resulting in a denial of service.

Затронутые продукты
openSUSE Leap 16.0:python313-jwcrypto-1.5.6-160000.5.1
Ссылки