---
title: "Security digest: January 2, 2026"
url: https://erroneo.us/security/2026-01-02/
description: "January 2, 2026 vulnerability digest: 3 critical advisories (npm). What to patch and who can relax."
type: security-digest-day
section: "Security Digest"
date_published: 2026-01-02
date_modified: 2026-01-02
publisher: erroneo.us
author: erroneo.us Security Desk
license: All rights reserved. Quote with attribution and a link.
---

# Security digest: January 2, 2026

3 critical advisories.

## Take stock

- npm: 3 critical advisories ( signalk-server , @adonisjs/bodyparser ). Check with npm audit (or: npm ls <package>) .
- None of it touches your stack? Then there is nothing to do today. That is a result, not a failure to read carefully.

## Known exploited (CISA KEV)

None.

## Critical advisories

- [CVE-2025-66398](https://erroneo.us/security/cve/CVE-2025-66398/index.md) Signal K Server has Unauthenticated State Pollution leading to Remote Code Execution (RCE) — npm signalk-server < 2.19.0 → 2.19.0
- [CVE-2026-21440](https://erroneo.us/security/cve/CVE-2026-21440/index.md) AdonisJS Path Traversal in Multipart File Handling — npm @adonisjs/bodyparser < 10.1.2 → 10.1.2; npm @adonisjs/bodyparser >= 11.0.0-next.0, < 11.0.0-next.6 → 11.0.0-next.6
- [CVE-2025-68620](https://erroneo.us/security/cve/CVE-2025-68620/index.md) Signal K Server vulnerable to JWT Token Theft via WebSocket Enumeration and Unauthenticated Polling — npm signalk-server < 2.19.0 → 2.19.0

---
Source page: https://erroneo.us/security/2026-01-02/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt