Badkeys vulnerabilities

🔔 Create alert RSS

Published CVEs affecting Badkeys products: 1 record(s), with severity, exploitation and fixes.

Exploited only (KEV) →

CVE-2026-21439 Medium · 5.3 CWE-150 Jan 5, 2026

badkeys vulnerable to ASCII control character injection on console via malformed input

badkeys is a tool and library for checking cryptographic public keys for known vulnerabilities. In versions 0.0.15 and below, an attacker may inject content with ASCII control characters like vertical tabs, ANSI escape sequences, etc., that can create misleading output of the badkeys command-line tool. This impacts scanning DKIM keys (both --dkim and --dkim-dns), SSH keys (--ssh-lines mode), and filenames in various modes. This issue is fixed in version 0.0.16.