CVE-2026-21439
badkeys vulnerable to ASCII control character injection on console via malformed input
Vexday Risk Score
8Bajo
Decisión SSVC (CISA)
Track
Sin señal de explotación → monitorear
CVSS 2EPSS 0.3%KEV nãoPoC —Nuclei —Metasploit —Patch —
Ciclo de vida
05 ene 2026Publicada en NVD
Recomendación: Monitorear — sin señal de explotación por ahora.
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.
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
Productos afectados
badkeys · badkeys¿Quieres saber si tu infraestructura está expuesta a esto?
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