All errata/p11_loongarch64/ALT-PU-2026-17735-1
ALT-PU-2026-17735-1

Package update python3-module-jwcrypto in branch p11_loongarch64

Version1.6.1-alt1
Task#0
Published2026-10-06
Max severityMEDIUM
Severity:

Closed issues (1)

CVE-2026-92091
MEDIUM5.9

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.

Published: 2026-09-16Modified: 2026-09-16
CVSS 3.xMEDIUM 5.9
CVSS:3.x/CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H