Description

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.

INFO

Published Date :

2026-01-05T23:51:35.670Z

Last Modified :

2026-01-06T19:01:48.962Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2026-21439 vulnerability.

Vendors Products
Badkeys
  • Badkeys
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-21439.

URL Resource
https://github.com/badkeys/badkeys/commit/635a2f3b1b50a895d8b09ec8629efc06189f349a cve-icon cve-icon
https://github.com/badkeys/badkeys/commit/de631f69f040974bb5fb442cdab9a1d904c64087 cve-icon cve-icon
https://github.com/badkeys/badkeys/issues/40 cve-icon cve-icon cve-icon
https://github.com/badkeys/badkeys/security/advisories/GHSA-wjpc-4f29-83h3 cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
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Detailed values of each vector for above chart.
Attack Vector
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User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact