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Apexward Pulse
Type Vulnerability

Apache

Apache ActiveMQ Input Validation Flaw Vulnerability

3 sourcesCVE-2026-34197

At a glance

Medium
7-day window, from the last update
ActiveConfirmed in-the-wild exploitation
Evidence-weighted, not popularity
Signal

Actively exploited in the wild — prioritise confirming exposure.

Why Medium

Medium rather than High: exposure is scored at a default because we cannot see your systems or suppliers. If you run or depend on Apache ActiveMQ Classic, treat it as High.

Briefing

  • Leaders should confirm whether SOI versions SOI/>=2.0.0|<=2.2.0 are present in their estate.

Questions to ask IT

  • Do we run Apache ActiveMQ Classic and Apache ActiveMQ Broker, and is every instance on a fixed release (5.19.4 or 6.2.3, or later)?
  • Is any of it reachable from the internet?
  • Have we checked whether it has already been used against us?
  • If it is not yet patched, what mitigation is in place, and will the fix be done by 12 Nov?

Next steps

  1. Confirm exposure and remediation status for affected products

Summary

  • Hitachi Energy reports a Remote Code Execution vulnerability in Apache ActiveMQ component of SOI product versions listed in this document.
  • The vulnerability (CVE-2026-34197) can be exploited to affect confidentiality, integrity, and availability of the product.
  • Exploitation of CVE-2026-34197 is confirmed in the wild according to US known-exploited catalogue.

Products and services involved

13 reports

Part of Adobe Commerce and Magento Improper Neutralization of Special Elements Used in a Template Engine Vulnerability

All 13 reports in this story

Same event, different frames

Distinct often headline the same incident differently.

Pulse

Last checked 3d ago · Recheck overdue since 6 Nov 2026, 08:40 UK time · 1 quiet check collapsed

Update
5 Nov 2026, 08:40 UK time · 3d ago

Suggested changed to 7d.

Listed on the — prioritise confirming exposure and patching.

EscalationDe-escalationCritical / liveWhat these mean
Drag to pan · Ctrl / ⌘ + scroll or pinch to zoom11 events

2 quiet checks hidden.

Sources

How we know

Statements extracted from sources. Higher confidence means stronger corroboration.

  • ClaimedHeadline60% confidence

    Apache ActiveMQ Improper Input Validation Vulnerability

  • ProbableSummary fact75% confidence

    View CSAF Summary Hitachi Energy is aware of RCE (Remote Code Execution) vulnerability in Apache ActiveMQ component of SOI product versions listed in this document. These vulnerabilities can be exploited to carry out various attacks affecting confidentiality, integrity, and availability of the product. Please refer to the Recommended Immediate Actions for information about the mitigation/remediation.

  • ConfirmedCVE identifier95% confidence

    Event involves CVE-2026-34197

  • ConfirmedKnown-exploited catalogue98% confidence

    CVE-2026-34197 is confirmed as exploited in the wild (US known-exploited catalogue)

  • ConfirmedEstimated attack likelihood95% confidence

    CVE-2026-34197 has an estimated ~15.5% chance of attack in 30 days (96.7th percentile) as of 2026-10-06 — probability signal, not confirmed exploitation