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CVE-2026-34197

Improper Input Validation: Is CVE-2026-34197 real, exploitable, or a false positive? Here's the community verdict.

Community verdict: No field verdicts yet. Be the first practitioner to weigh in.

signals

public sources

Exploited in wild
Yes
CISA KEV · Apr 16, 2026
Public exploit
Metasploit +1
Metasploit/EDB/PoC
Base severity
8.8 High
CVSS
Exploitation prob.
98%
FIRST EPSS
Weakness
CWE-20 · Improper Input Validation
CWE

Confirmed exploited in the wild. Patch this first, regardless of the base score.

cisa ssvc

CISA Vulnrichment · assessed

Exploitation
Active
in the wild
Automatable
No
at scale
Technical impact
Total
on success

CISA decision, by how critical the affected system is to you:

  • low impact → Track
  • medium impact → Attend
  • high impact → Act

Track: normal patch cycle · Track*: watch closely · Attend: patch sooner · Act: patch now. About SSVC ↗

public exploits

links to sources — we don’t host code

A working exploit is publicly available from a maintained source. Treat this as higher urgency and verify your exposure.

affected packages

GHSA-rxpj-7qvf-xv32 · GitHub rates it high
  • Mavenorg.apache.activemq:activemq-broker
    Vulnerable
    < 5.19.5; ≥ 6.0.0, < 6.2.3
    Fixed in
    5.19.5, 6.2.3
  • Mavenorg.apache.activemq:activemq-all
    Vulnerable
    < 5.19.5; ≥ 6.0.0, < 6.2.3
    Fixed in
    5.19.5, 6.2.3

Source: GitHub Advisory Database (CC-BY 4.0), via OSV.dev. Check your lockfile version against the ranges above.

baseline read

auto · not a community verdict

Real — exploited in the wild

CISA confirms active exploitation. Treat scanner hits as true positives unless your specific version or config is unaffected.

Based on CISA KEV

Confirm or dispute →
Affected:Apache

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Improper Input Validation, Improper Control of Generation of Code ('Code Injection') vulnerability in Apache ActiveMQ Broker, Apache ActiveMQ. Apache ActiveMQ Classic exposes the Jolokia JMX-HTTP bridge at /api/jolokia/ on the web console. The default Jolokia access policy permits exec operations on all ActiveMQ MBeans (org.apache.activemq:*), including BrokerService.addNetworkConnector(String) and BrokerService.addConnector(String). An authenticated attacker can invoke these operations with a crafted discovery URI that triggers the VM transport's brokerConfig parameter to load a remote Spring XML application context using ResourceXmlApplicationContext. Because Spring's ResourceXmlApplicationContext instantiates all singleton beans before the BrokerService validates the configuration, arbitrary code execution occurs on the broker's JVM through bean factory methods such as Runtime.exec(). This issue affects Apache ActiveMQ Broker: before 5.19.4, from 6.0.0 before 6.2.3; Apache ActiveMQ All: before 5.19.4, from 6.0.0 before 6.2.3; Apache ActiveMQ: before 5.19.4, from 6.0.0 before 6.2.3. Users are recommended to upgrade to version 5.19.4 or 6.2.3, which fixes the issue

Published · Added to CISA KEV (9 days after publication)

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timeline

  1. EPSS jumped · 15% → 98%
  2. CISA SSVC assessment · exploitation: active
  3. Added to CISA KEV · confirmed exploited in the wild
  4. Added to VulnCheck KEV · reported exploited in the wild
  5. Published by NVD

Score and exploit changes tracked since .

Community ground truth

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In your experience, is this finding real and exploitable?

awaiting field verdicts
Real, but not a risk here
Not a real issue

Curated baseline: TruePositive's read from public sources is Real & exploitable — a starting point, not a community verdict.

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Field notes & remediation

Verdicts are the quick signal. Notes are the evidence and fixes behind them.

  • 0
    Field note · TruePositive EditorialCurated

    This is confirmed exploited in the wild. It is in the CISA KEV catalog, so attackers are actively using it, not just researchers. Patch this on priority and confirm the fix holds.

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Same weakness: CWE-20 · Improper Input Validation.