---
title: "Security digest: January 7, 2026"
url: https://erroneo.us/security/2026-01-07/
description: "January 7, 2026 vulnerability digest: 1 brief (Ni8mare); 2 CISA KEV additions (Hewlett Packard Enterprise (HPE)…); 5 critical advisories (PyPI, npm, Go…"
type: security-digest-day
section: "Security Digest"
date_published: 2026-01-07
date_modified: 2026-10-21
publisher: erroneo.us
author: erroneo.us Security Desk
license: All rights reserved. Quote with attribution and a link.
---

# Security digest: January 7, 2026

1 editorial brief, 2 known exploited (cisa kev) additions and 5 critical advisories.

## Take stock

- Act now: Ni8mare . Anyone self-hosting n8n (Docker, npm or source) below 1.122.0, especially with public Form or webhook endpoints.
- Do you run any of these? Hewlett Packard Enterprise (HPE) OneView, Microsoft Office. They are being exploited in the wild (CISA KEV). Patch or mitigate if you do; CISA’s federal deadline is 2026-01-28.
- PyPI: 2 critical advisories ( wolfssl , terminal-controller ). Check with pip-audit (or: pip show <package>) .
- npm: 1 critical advisory ( n8n ). Check with npm audit (or: npm ls <package>) .
- Go: 1 critical advisory ( github.com/openflagr/flagr ). Check with govulncheck ./... .
- Maven: 1 critical advisory ( io.undertow:undertow-core ). Check with mvn dependency:tree -Dincludes=<groupId>:<artifactId> .
- None of it touches your stack? Then there is nothing to do today. That is a result, not a failure to read carefully.

## Editorial briefs

- **Act now** [Ni8mare: n8n Unauthenticated Takeover, Plus a KEV RCE](https://erroneo.us/security/briefs/ni8mare-n8n-unauthenticated-file-read-rce/index.md): If you self-host n8n and anything about it is reachable from the internet, upgrade today: one bug lets strangers in through public forms, and its companion RCE is on CISA's exploited list.

## Known exploited (CISA KEV)

- [CVE-2025-37164](https://erroneo.us/security/cve/CVE-2025-37164/index.md) Hewlett Packard Enterprise (HPE) OneView: Hewlett Packard Enterprise (HPE) OneView Code Injection Vulnerability (CISA due 2026-01-28)
- [CVE-2009-0556](https://erroneo.us/security/cve/CVE-2009-0556/index.md) Microsoft Office: Microsoft Office PowerPoint Code Injection Vulnerability (CISA due 2026-01-28)

## Critical advisories

- [CVE-2025-15346](https://erroneo.us/security/cve/CVE-2025-15346/index.md) wolfSSL Python module vulnerable to Improper Authentication — PyPI wolfssl < 5.8.4.post0 → 5.8.4.post0
- [CVE-2026-21858](https://erroneo.us/security/cve/CVE-2026-21858/index.md) n8n Vulnerable to Unauthenticated File Access via Improper Webhook Request Handling — npm n8n >= 1.65.0, < 1.121.0 → 1.121.0
- [CVE-2026-0650](https://erroneo.us/security/cve/CVE-2026-0650/index.md) OpenFlagr contains an authentication bypass vulnerability in the HTTP middleware — Go github.com/openflagr/flagr < 0.0.0-20251009103504-fe83dc87aa40 → 0.0.0-20251009103504-fe83dc87aa40
- [CVE-2025-12543](https://erroneo.us/security/cve/CVE-2025-12543/index.md) Undertow HTTP server core doesn't properly validate the Host header in incoming HTTP requests — Maven io.undertow:undertow-core = 2.4.0.Alpha1 → no fix; Maven io.undertow:undertow-core >= 2.3.0.Alpha1, < 2.3.21.Final → 2.3.21.Final; Maven io.undertow:undertow-core < 2.2.39.Final → 2.2.39.Final
- [CVE-2025-61492](https://erroneo.us/security/cve/CVE-2025-61492/index.md) terminal-controller-mcp vulnerable to Command Injection — PyPI terminal-controller <= 0.1.7 → no fix

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Source page: https://erroneo.us/security/2026-01-07/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt