---
title: "Security digest: January 9, 2026"
url: https://erroneo.us/security/2026-01-09/
description: "January 9, 2026 vulnerability digest: 4 critical advisories (Maven, PyPI, Go). What to patch and who can relax."
type: security-digest-day
section: "Security Digest"
date_published: 2026-01-09
date_modified: 2026-01-09
publisher: erroneo.us
author: erroneo.us Security Desk
license: All rights reserved. Quote with attribution and a link.
---

# Security digest: January 9, 2026

4 critical advisories.

## Take stock

- Maven: 2 critical advisories ( com.alibaba:fastjson , org.xwiki.contrib:macro-fullcalendar-pom ). Check with mvn dependency:tree -Dincludes=<groupId>:<artifactId> .
- PyPI: 1 critical advisory ( uni2ts ). Check with pip-audit (or: pip show <package>) .
- Go: 1 critical advisory ( github.com/Tencent/WeKnora ). Check with govulncheck ./... .
- 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-2025-70974](https://erroneo.us/security/cve/CVE-2025-70974/index.md) FASTJSON Includes Functionality from Untrusted Control Sphere — Maven com.alibaba:fastjson < 1.2.48 → 1.2.48
- [CVE-2026-22584](https://erroneo.us/security/cve/CVE-2026-22584/index.md) Salesforce Uni2TS has a Code Injection vulnerability — PyPI uni2ts <= 1.2.0 → 2.0.0
- [CVE-2026-22688](https://erroneo.us/security/cve/CVE-2026-22688/index.md) WeKnora has Command Injection in MCP stdio test — Go github.com/Tencent/WeKnora < 0.2.5 → 0.2.5
- [CVE-2025-65091](https://erroneo.us/security/cve/CVE-2025-65091/index.md) XWiki Full Calendar Macro vulnerable to SQL injection through Calendar.JSONService — Maven org.xwiki.contrib:macro-fullcalendar-pom <= 2.4.3 → 2.4.5

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Source page: https://erroneo.us/security/2026-01-09/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt