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CVE-2026-21439

nvd nist
Published: Jan 6, 2026Modified: Jun 17, 2026

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2.0
Vector
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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
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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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:XShow less
Source: security-advisories@github.com (Secondary)

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.

Affected (1)

Products: Badkeys: Badkeys
Badkeys
1 product
Badkeys
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Badkeys
Before 0.0.16

Related CWEs

CWE-150
Improper Neutralization of Escape, Meta, or Control Sequences
The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could be interpreted as escape, meta, or control character sequences when they are sent to a downstream component.

References (5)

Source: security-advisories@github.com
Patch
Source: security-advisories@github.com
Patch
Source: security-advisories@github.com
ExploitIssue TrackingThird Party Advisory
Source: security-advisories@github.com
Third Party Advisory
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
ExploitIssue TrackingThird Party Advisory

Timeline

No history available yet.