CVE-2017-12974: CONNECT2ID Nimbus Jose+jwt

High severity, CVSS 7.5. EPSS: 1.3% chance of exploitation in the next 30 days.

Nimbus JOSE+JWT before 4.36 proceeds with ECKey construction without ensuring that the public x and y coordinates are on the specified curve, which allows attackers to conduct an Invalid Curve Attack in environments where the JCE provider lacks the applicable curve validation.

Affected products

• CONNECT2ID Nimbus Jose+jwt: version 1.0 only; version 1.1 only; version 1.2 only; version 1.3 only; version 1.4 only; version 1.5 only; …

Published 2017-08-20. Last modified 2026-06-17.