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CVE-2026-21439
Good to know:
Date: January 5, 2026
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.
Severity Score
Related Resources (7)
Severity Score
Weakness Type (CWE)
Improper Neutralization of Escape, Meta, or Control Sequences
CWE-150Top Fix
Upgrade Version
Upgrade to version badkeys - 0.0.16;https://github.com/badkeys/badkeys.git - v0.0.16
CVSS v3.1
| Base Score: |
|
|---|---|
| Attack Vector (AV): | LOCAL |
| Attack Complexity (AC): | LOW |
| Privileges Required (PR): | NONE |
| User Interaction (UI): | NONE |
| Scope (S): | UNCHANGED |
| Confidentiality (C): | NONE |
| Integrity (I): | LOW |
| Availability (A): | NONE |