Horizon3.Ai Critical RCE Vulnerability CVE-2026-34197 Discovered in Apache ActiveMQ Classic
Article Content
- •CVE-2026-34197 allows RCE via the Jolokia API in Apache ActiveMQ Classic.
- •Exploitation can occur without credentials in certain vulnerable versions.
- •Patches are available in ActiveMQ versions 5.19.4 and 6.2.3.
A critical remote code execution (RCE) vulnerability, tracked as CVE-2026-34197, has been identified in Apache ActiveMQ Classic, affecting versions prior to 5.19.4 and 6.0.0 to 6.2.3. This flaw, which has remained undetected for 13 years, allows authenticated attackers to exploit the Jolokia API to execute arbitrary code by supplying a crafted URI. In certain versions, where another vulnerability (CVE-2024-32114) exposes the Jolokia API without authentication, this RCE can be executed without credentials. The vulnerability is particularly dangerous due to its potential for full host compromise once access to the web console is gained. Patches have been released in versions 5.19.4 and 6.2.3 to mitigate this risk. The discovery was made by Horizon3.ai, highlighting a significant security concern for organizations using ActiveMQ. ActiveMQ is widely used across various sectors, including finance and healthcare, making this vulnerability a high priority for remediation.
Ask AI about this cluster
Answers cite the sources they use
Timeline
More articles in this cluster (35)
Following this threat?
Track CVE-2016-3088 in your own feed — you're alerted when they show up in new reporting, leak sites or exploitation.
Free account · no card needed
Continue Reading
CVE-2015-3306 Exploited in ProFTPD FTP Servers CVE-2015-3306, a vulnerability in ProFTPD 1.3.5, allows remote attackers to read and write arbitrary files using the SITE CPFR and SITE CPTO commands. This exploit can lead to unauthorized access and potential remote code execution, as the commands are executed with the privileges of the ProFTPD service. Active… 
CISA Sets Oct. 11 Deadline for Patching Flaws Exploited by Flax Typhoon The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added five vulnerabilities to its Known Exploited Vulnerabilities (KEV) catalog after they were exploited by the China-linked group Flax Typhoon. Federal agencies must patch or retire the affected software by October 11, 2026. The vulnerabilities…