CVE-2026-49157: Apache activemq Apache ActiveMQ Has An Incorrect Vulnerability

HIGH
Advisory Identifier: GHSA-99qx-5qqr-4j95
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CVSS 8.8
CWE-276
Published
Advisory Summary

CVE-2026-49157 is a HIGH (CVSS 8.8) apache activemq has an incorrect vulnerability (CWE-276: Incorrect Default Permissions) affecting Apache activemq libraries in the Maven ecosystem. The issue involves apache activemq has an incorrect default permissions vulnerability. Remediation is available by upgrading affected packages to version 5.19.7, 6.2.6.

CVE-2026-49157 at a Glance

CVE Identifier CVE-2026-49157
GHSA Identifier GHSA-99qx-5qqr-4j95
Severity HIGH
CVSS v3.1 Base Score 8.8
CWE Classification CWE-276: Incorrect Default Permissions
Affected Product Apache activemq
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 8.8

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2026-49157

To remediate this vulnerability, upgrade all affected Apache activemq dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

org.apache.activemq:apache-activemq fixed: 5.19.7 
<dependency>
    <groupId>org.apache.activemq</groupId>
    <artifactId>apache-activemq</artifactId>
    <version>5.19.7</version>
</dependency>
org.apache.activemq:apache-activemq fixed: 6.2.6 
<dependency>
    <groupId>org.apache.activemq</groupId>
    <artifactId>apache-activemq</artifactId>
    <version>6.2.6</version>
</dependency>
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

mvn dependency:tree -Dincludes=org.apache.activemq

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2026-49157, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=org.apache.activemq

Analyze the terminal output to locate any version of Apache activemq in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 5.19.7), your application is affected.

Note: The mvn dependency:tree -Dincludes=org.apache.activemq command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-276: Incorrect Default Permissions, where during installation, installed file permissions are set to allow anyone to modify those files. In Apache activemq, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

Incorrect Default Permissions vulnerability in Apache ActiveMQ. This issue affects Apache ActiveMQ: before 5.19.7, from 6.0.0 before 6.2.6. The default Jolokia authorization settings granted non-admin (low-privilege) web-login accounts access to Jolokia operations which allowed executing broker management operations meant for admins such as addQueue and removeQueue. Users are recommended to upgrade to version 6.2.6 or 5.19.7, which fixes the issue.

CVE-2026-49157 Affected Apache activemq Versions

2 component(s)
Fixed Versions:
5.19.76.2.6
Product / Package Ecosystem Affected Versions Fixed Version
org.apache.activemq:apache-activemq
maven/org.apache.activemq/apache-activemq
Maven
< 5.19.7
5.19.7
org.apache.activemq:apache-activemq
maven/org.apache.activemq/apache-activemq
Maven
≥ 6.0.0
< 6.2.6
6.2.6

References

NVD — CVE-2026-49157 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-49157
Apache activemq Source Repository REPOSITORY
https://github.com/apache/activemq
lists.apache.org/thread/rrcsf6s90hj4... WEB
https://lists.apache.org/thread/rrcsf6s90hj4tdh89nvkko75q5505rj8
Apache activemq Security Information SECURITY
http://www.openwall.com/lists/oss-security/2026/05/31/21

Frequently Asked Questions

What is CVE-2026-49157?
CVE-2026-49157 is a security vulnerability in Apache activemq involving Apache ActiveMQ has an Incorrect Default Permissions vulnerability under CWE-276: Incorrect Default Permissions.
Which Apache activemq versions are affected?
Affected versions include releases prior to 5.19.7, 6.2.6 across affected packages: org.apache.activemq:apache-activemq.
What version fixes CVE-2026-49157?
Upgrading to 5.19.7, 6.2.6 (or the latest patched release for your respective branch) resolves the vulnerability.
Is apache-activemq affected?
Yes, org.apache.activemq:apache-activemq is affected in releases prior to 5.19.7, 6.2.6. Upgrade your dependency to 5.19.7, 6.2.6 or later.
What is the CVSS score of CVE-2026-49157?
CVE-2026-49157 has a CVSS v3.1 base score of 8.8 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2026-49157?
CVE-2026-49157 is classified under CWE-276: Incorrect Default Permissions (During installation, installed file permissions are set to allow anyone to modify those files.).
How can I check Maven dependencies for CVE-2026-49157?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=org.apache.activemq'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-99qx-5qqr-4j95",
  "modified" : "2026-07-09T21:08:20Z",
  "published" : "2026-06-01T09:31:15Z",
  "aliases" : [ "CVE-2026-49157" ],
  "summary" : "Apache ActiveMQ has an Incorrect Default Permissions vulnerability",
  "details" : "Incorrect Default Permissions vulnerability in Apache ActiveMQ.\n\nThis issue affects Apache ActiveMQ: before 5.19.7, from 6.0.0 before 6.2.6.\n\nThe default Jolokia authorization settings granted non-admin (low-privilege) web-login accounts access to Jolokia operations which allowed executing broker management operations meant for admins such as addQueue and removeQueue.\n\nUsers are recommended to upgrade to version 6.2.6 or 5.19.7, which fixes the issue.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.apache.activemq:apache-activemq"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "5.19.7"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.apache.activemq:apache-activemq"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "6.0.0"
      }, {
        "fixed" : "6.2.6"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-49157"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/apache/activemq"
  }, {
    "type" : "WEB",
    "url" : "https://lists.apache.org/thread/rrcsf6s90hj4tdh89nvkko75q5505rj8"
  }, {
    "type" : "WEB",
    "url" : "http://www.openwall.com/lists/oss-security/2026/05/31/21"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-276" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-07-09T21:08:20Z",
    "nvd_published_at" : "2026-06-01T09:16:20Z"
  }
}