CVE-2019-18848: Debian Linux

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

The json-jwt gem before 1.11.0 for Ruby lacks an element count during the splitting of a JWE string.

Affected products

• Debian Debian Linux: version 9.0 only
• JSON-Jwt Project JSON-Jwt: before 1.11.0 (fixed in 1.11.0)

Published 2019-11-12. Last modified 2026-06-17.