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CVE-2019-0187

Unauthenticated Remote Code Execution in Apache JMeter

9.8 CriticalFix available

Unauthenticated RCE is possible when JMeter is used in distributed mode (-r or -R command line options). Attacker can establish a RMI connection to a jmeter-server using RemoteJMeterEngine and proceed with an attack using untrusted data deserialization. This only affect tests running in Distributed mode. Note that versions before 4.0 are not able to encrypt traffic between the nodes, nor authenticate the participating nodes so upgrade to JMeter 5.1 is also advised.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

2.64%Up 0.8 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 9.8

Unauthenticated RCE is possible when JMeter is used in distributed mode (-r or -R command line options). Attacker can establish a RMI connection to a jmeter-server using RemoteJMeterEngine and proceed with an attack using untrusted data deserialization. This only affect tests running in Distributed mode. Note that versions before 4.0 are not able to encrypt traffic between the nodes, nor authenticate the participating nodes so upgrade to JMeter 5.1 is also advised.

Record
CVE-2019-0187
CVSS 3.0
9.8 CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0
7.5 HighAV:N/AC:L/Au:N/C:P/I:P/A:P
Weakness
CWE-327, CWE-502
Updated
2026-11-02
CVE List No score

Unauthenticated RCE is possible when JMeter is used in distributed mode (-r or -R command line options). Attacker can establish a RMI connection to a jmeter-server using RemoteJMeterEngine and proceed with an attack using untrusted data deserialization. This only affect tests running in Distributed mode. Note that versions before 4.0 are not able to encrypt traffic between the nodes, nor authenticate the participating nodes so upgrade to JMeter 5.1 is also advised.

Record
CVE-2019-0187
Updated
2026-11-02
EUVDEUVD-2019-0394 No score

Unauthenticated RCE is possible when JMeter is used in distributed mode (-r or -R command line options). Attacker can establish a RMI connection to a jmeter-server using RemoteJMeterEngine and proceed with an attack using untrusted data deserialization. This only affect tests running in Distributed mode. Note that versions before 4.0 are not able to encrypt traffic between the nodes, nor authenticate the participating nodes so upgrade to JMeter 5.1 is also advised.

Record
EUVD-2019-0394
Updated
2026-11-03
GitHub AdvisoriesGHSA-wg37-7mrv-cfwm 9.8

Unauthenticated Remote Code Execution in Apache JMeter

Unauthenticated RCE is possible when JMeter is used in distributed mode (-r or -R command line options). Attacker can establish a RMI connection to a jmeter-server using RemoteJMeterEngine and proceed with an attack using untrusted data deserialization. This only affect tests running in Distributed mode. Note that versions before 4.0 are not able to encrypt traffic between the nodes, nor authenticate the participating nodes so upgrade to JMeter 5.1 is also advised.

Record
GHSA-wg37-7mrv-cfwm
CVSS 3.0
9.8 CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-327, CWE-502
Updated
2026-11-02
OSV 9.8

Unauthenticated RCE is possible when JMeter is used in distributed mode (-r or -R command line options). Attacker can establish a RMI connection to a jmeter-server using RemoteJMeterEngine and proceed with an attack using untrusted data deserialization. This only affect tests running in Distributed mode. Note that versions before 4.0 are not able to encrypt traffic between the nodes, nor authenticate the participating nodes so upgrade to JMeter 5.1 is also advised.

Record
CVE-2019-0187
CVSS 3.0
9.8 CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVDEBIAN-CVE-2019-0187 9.8

Unauthenticated RCE is possible when JMeter is used in distributed mode (-r or -R command line options). Attacker can establish a RMI connection to a jmeter-server using RemoteJMeterEngine and proceed with an attack using untrusted data deserialization. This only affect tests running in Distributed mode. Note that versions before 4.0 are not able to encrypt traffic between the nodes, nor authenticate the participating nodes so upgrade to JMeter 5.1 is also advised.

Record
DEBIAN-CVE-2019-0187
CVSS 3.0
9.8 CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVGHSA-wg37-7mrv-cfwm 9.8

Unauthenticated Remote Code Execution in Apache JMeter

Unauthenticated RCE is possible when JMeter is used in distributed mode (-r or -R command line options). Attacker can establish a RMI connection to a jmeter-server using RemoteJMeterEngine and proceed with an attack using untrusted data deserialization. This only affect tests running in Distributed mode. Note that versions before 4.0 are not able to encrypt traffic between the nodes, nor authenticate the participating nodes so upgrade to JMeter 5.1 is also advised.

Record
GHSA-wg37-7mrv-cfwm
CVSS 3.0
9.8 CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-327, CWE-502
Updated
2026-11-02
OSVUBUNTU-CVE-2019-0187 9.8

Unauthenticated RCE is possible when JMeter is used in distributed mode (-r or -R command line options). Attacker can establish a RMI connection to a jmeter-server using RemoteJMeterEngine and proceed with an attack using untrusted data deserialization. This only affect tests running in Distributed mode. Note that versions before 4.0 are not able to encrypt traffic between the nodes, nor authenticate the participating nodes so upgrade to JMeter 5.1 is also advised.

Record
UBUNTU-CVE-2019-0187
CVSS 3.0
9.8 CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
org.apache.jmeter:ApacheJMeter
Maven
 before 5.1
5.1
jakarta-jmeter
Debian:12
 All versions, plus listed versions
2.13-52.13-6.1
 None known
jakarta-jmeter
Debian:13
 All versions, plus listed versions
2.13-52.13-6.1
 None known
jakarta-jmeter
Debian:14
 All versions, plus listed versions
2.13-52.13-6.1
 None known
org.apache.jmeter:ApacheJMeter
Maven
 before 5.1, plus listed versions
2.102.112.122.132.6
Show 9 moreShow less
2.72.82.93.03.13.23.34.05.0
5.1
jakarta-jmeter
Ubuntu:16.04:LTS
 All versions, plus listed versions
2.11-32.11-42.11-5
 None known
jakarta-jmeter
Ubuntu:18.04:LTS
 All versions, plus listed versions
2.13-3
 None known
jakarta-jmeter
Ubuntu:20.04:LTS
 All versions, plus listed versions
2.13-4
 None known
jakarta-jmeter
Ubuntu:22.04:LTS
 All versions, plus listed versions
2.13-42.13-5
 None known
jakarta-jmeter
Ubuntu:24.04:LTS
 All versions, plus listed versions
2.13-5
 None known
jakarta-jmeter
Ubuntu:25.10
 All versions, plus listed versions
2.13-5
 None known
jakarta-jmeter
Ubuntu:26.10
 All versions, plus listed versions
2.13-5build12.13-6.1
 None known
jakarta-jmeter
Ubuntu:26.04:LTS
 All versions, plus listed versions
2.13-52.13-5build1
 None known

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2019-0187 is a critical vulnerability (CVSS 9.8) in Apache Jmeter, published March 6, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.64%, the 85th percentile. Fixed in org.apache.jmeter:ApacheJMeter 5.1.

References

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