Detections
Analytics

SCA: security update for badkeys (GHSA-wjpc-4f29-83h3)

medium Tenable Cloud Security Plugin ID 436580

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - 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. (CVE-2026-21439)

See Also

https://github.com/advisories/GHSA-wjpc-4f29-83h3

Plugin Details

Severity: Medium

ID: 436580

Version: Revision 1.12

Type: Local

Family: SCA Checks

Published: 1/6/2026

Updated: 7/2/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 1.2

Percentile: 0.01

Vendor

Vendor Severity: Low

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N

CVSS Score Source: CVE-2026-21439

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

CVSS v4

Risk Factor: Medium

Base Score: 5.1

Threat Score: 2

Threat Vector: CVSS:4.0/E:P

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

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 1/5/2026

Vulnerability Publication Date: 1/5/2026

Reference Information

CVE: CVE-2026-21439

cwe: CWE-150