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CVE-2026-21439

MEDIUM

5.3

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.

Details CVE

Score CVSS v3.15.3

SeveriteMEDIUM

Vecteur CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisNONE

Interaction utilisateurNONE

Publie1/6/2026

Derniere modification1/12/2026

Sourcenvd

Observations honeypot0

Produits affectes

badkeys:badkeys

Faiblesses (CWE)

CWE-150

References

https://github.com/badkeys/badkeys/commit/635a2f3b1b50a895d8b09ec8629efc06189f349a(security-advisories@github.com)

https://github.com/badkeys/badkeys/commit/de631f69f040974bb5fb442cdab9a1d904c64087(security-advisories@github.com)

https://github.com/badkeys/badkeys/issues/40(security-advisories@github.com)

https://github.com/badkeys/badkeys/security/advisories/GHSA-wjpc-4f29-83h3(security-advisories@github.com)

https://github.com/badkeys/badkeys/issues/40(134c704f-9b21-4f2e-91b3-4a467353bcc0)

Correlations IOC

Aucune correlation enregistree

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