Signal
Thousands of Apache ActiveMQ instances still unpatched, weeks after an actively exploited hole discovered
Evidence first: scan the strongest sources, then decide whether to go deeper.
Published 2026-04-21 11:17 UTCUpdated 2026-04-21 20:28 UTC
rss
securitycso_online
Source links open
Source links and full evidence are open here. Archive history, compare-over-time, alerts, exports, API, integrations, and workflow are paid.
No card needed for the free brief.
Evidence trail (top sources)
top sources (2 domains)domains are deduped. counts indicate coverage, not truth.2 top sources shown
limited source diversity in top sources
Overview
Nonprofit security organization Shadowserver found that over 6,400 Apache ActiveMQ servers exposed online are vulnerable to ongoing attacks exploiting a high-severity code injection vulnerability.
Score total
1.01
Momentum 24h
2
Posts
2
Origins
2
Source types
1
Duplicate ratio
0%
All evidence
All evidence
Thousands of Apache ActiveMQ instances still unpatched, weeks after an actively exploited hole discovered
CSO Online · csoonline.com · 2026-04-21 20:28 UTC
Actively exploited Apache ActiveMQ flaw impacts 6,400 servers
bleepingcomputer_all · bleepingcomputer.com · 2026-04-21 11:17 UTC
Show filters & breakdown
Posts loaded: 0Publishers: 2Origin domains: 2Duplicates: -
Showing 2 / 0
Top publishers (this list)
- CSO Online (1)
- bleepingcomputer_all (1)
Top origin domains (this list)
- csoonline.com (1)
- bleepingcomputer.com (1)