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Vulnerability record · CVE-2018-11775 · published 10 September 2018

CVE-2018-11775: Apache activemq improper certificate validation vulnerability

Apache · Activemq

TLS hostname verification when using the Apache ActiveMQ Client before 5.15.6 was missing which could make the client vulnerable to a MITM attack between a Java application using the ActiveMQ client and the ActiveMQ server. This is now enabled by default.

7.4 CVSS 3.0 High EPSS 7.0% · top 6.1% CWE-295 · Improper certificate validation
7.4CVSS 3.0 base score, v2 5.8
7.0%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
30References
17 Jun 2026Last modified by NVD

Description

TLS hostname verification when using the Apache ActiveMQ Client before 5.15.6 was missing which could make the client vulnerable to a MITM attack between a Java application using the ActiveMQ client and the ActiveMQ server. This is now enabled by default.

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Affected products

3 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://activemq.apache.org/security-advisories.data/CVE-2018-11775-announcement.txt Vendor Advisory
http://www.securityfocus.com/bid/105335 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1041618 Third Party AdvisoryVDB Entry
https://access.redhat.com/errata/RHSA-2019:3892
https://lists.apache.org/thread.html/03f91b1fb85686a848cee6b90112cf6059bd1b21b23bacaa11a962e1%40%3Cdev.activemq.apache.o
https://lists.apache.org/thread.html/2b5c0039197a4949f29e1e2c9441ab38d242946b966f61c110808bcc%40%3Ccommits.activemq.apac
https://lists.apache.org/thread.html/a859563f05fbe7c31916b3178c2697165bd9bbf5a65d1cf62aef27d2%40%3Ccommits.activemq.apac
https://lists.apache.org/thread.html/fcbe6ad00f1de142148c20d813fae3765dc4274955e3e2f3ca19ff7b%40%3Cdev.activemq.apache.o
https://lists.apache.org/thread.html/rb698ed085f79e56146ca24ab359c9ef95846618675ea1ef402e04a6d%40%3Ccommits.activemq.apa
https://lists.debian.org/debian-lts-announce/2021/03/msg00005.html
https://www.oracle.com/security-alerts/cpuapr2020.html
https://www.oracle.com/security-alerts/cpujan2021.html
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html PatchThird Party Advisory
https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html PatchThird Party Advisory
https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html
http://activemq.apache.org/security-advisories.data/CVE-2018-11775-announcement.txt Vendor Advisory
http://www.securityfocus.com/bid/105335 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1041618 Third Party AdvisoryVDB Entry
https://access.redhat.com/errata/RHSA-2019:3892
https://lists.apache.org/thread.html/03f91b1fb85686a848cee6b90112cf6059bd1b21b23bacaa11a962e1%40%3Cdev.activemq.apache.o
https://lists.apache.org/thread.html/2b5c0039197a4949f29e1e2c9441ab38d242946b966f61c110808bcc%40%3Ccommits.activemq.apac
https://lists.apache.org/thread.html/a859563f05fbe7c31916b3178c2697165bd9bbf5a65d1cf62aef27d2%40%3Ccommits.activemq.apac
https://lists.apache.org/thread.html/fcbe6ad00f1de142148c20d813fae3765dc4274955e3e2f3ca19ff7b%40%3Cdev.activemq.apache.o
https://lists.apache.org/thread.html/rb698ed085f79e56146ca24ab359c9ef95846618675ea1ef402e04a6d%40%3Ccommits.activemq.apa
https://lists.debian.org/debian-lts-announce/2021/03/msg00005.html
https://www.oracle.com/security-alerts/cpuapr2020.html
https://www.oracle.com/security-alerts/cpujan2021.html
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html PatchThird Party Advisory
https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html PatchThird Party Advisory
https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html

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Source: NIST National Vulnerability Database (record CVE-2018-11775), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.