CVE-2026-42253

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Source
https://cve.org/CVERecord?id=CVE-2026-42253
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-42253.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-42253
Aliases
Downstream
Published
2026-06-01T07:23:50.962Z
Modified
2026-07-15T01:48:59.856401638Z
Severity
  • 6.1 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N CVSS Calculator
Summary
Apache ActiveMQ, Apache ActiveMQ Web: HTTP Response Header Injection via JMS Message Properties
Details

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Apache ActiveMQ, Apache ActiveMQ Web.

The MessageServlet in the ActiveMQ web console API copies every JMS message property into an HTTP response header without any validation. This can allow overwriting and injecting security headers by setting them on JMS messages that are returned by the servlet.

This issue affects Apache ActiveMQ: before 5.19.7, from 6.0.0 before 6.2.6; Apache ActiveMQ Web: before 5.19.7, from 6.0.0 before 6.2.6.

Users are recommended to upgrade to version 5.19.7 or 6.2.6, which fixes the issue. The MessageServlet has now been deprecated and disabled by default.

Database specific 
{
    "cwe_ids": [
        "CWE-79"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42253.json",
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "fixed": "5.19.7"
                },
                {
                    "introduced": "6.0.0"
                },
                {
                    "fixed": "6.2.6"
                },
                {
                    "fixed": "5.19.7"
                },
                {
                    "introduced": "6.0.0"
                },
                {
                    "fixed": "6.2.6"
                }
            ],
            "source": "AFFECTED_FIELD"
        },
        {
            "extracted_events": [
                {
                    "fixed": "5.19.7"
                },
                {
                    "introduced": "6.0.0"
                },
                {
                    "fixed": "6.2.6"
                },
                {
                    "fixed": "5.19.7"
                },
                {
                    "introduced": "6.0.0"
                },
                {
                    "fixed": "6.2.6"
                }
            ],
            "source": "DESCRIPTION"
        }
    ],
    "cna_assigner": "apache"
}
References

Affected packages

Git / github.com/apache/activemq

Affected ranges

Type
GIT
Repo
https://github.com/apache/activemq
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
fa56d21ff2d14b99928917cc0bef2e8830acf15f
Introduced
14bac13f40958c1a1d3d198051eed32facc4abd1
Fixed
bb9523b9847fe235a971256fec7ce6bb5670d14d
Database specific 
{
    "cpe": "cpe:2.3:a:apache:activemq:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "5.19.7"
        },
        {
            "introduced": "6.0.0"
        },
        {
            "fixed": "6.2.6"
        }
    ],
    "source": "CPE_RANGE"
}

Affected versions

activemq-5.*
activemq-5.10.0
activemq-5.11.0
activemq-5.12.0
activemq-5.13.0
activemq-5.14.0
activemq-5.15.0
activemq-5.16.0
activemq-5.18.0
activemq-5.18.1
activemq-5.18.2
activemq-5.18.3
activemq-5.18.4
activemq-5.18.5
activemq-5.18.6
activemq-5.19.0
activemq-5.19.1
activemq-5.19.2
activemq-5.9.0
activemq-6.*
activemq-6.0.0
activemq-6.1.0
activemq-6.1.1
activemq-6.1.2
activemq-6.2.0
activemq-6.2.1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-42253.json"