CVE-2026-41043: apache software foundation apache activemq Cross-site Scripting
Vulnerability summary
CVE-2026-41043 is a medium (CVSS 6.5) Cross-site Scripting vulnerability in apache software foundation apache activemq. EPSS estimates a 0.72% chance of exploitation in the next 30 days, higher than 52.8% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 0 · Related 1Timeline
- 24-04-2026PublishedVulnerability first disclosed.
- 24-04-2026Last modifiedVulnerability information updated.
Description
Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) vulnerability in Apache ActiveMQ, Apache ActiveMQ Web. An authenticated attacker can show malicious content when browsing queues in the web console by overriding the content type to be HTML (instead of XML) and by injecting HTML into a JMS selector field. This issue affects Apache ActiveMQ: before 5.19.6, from 6.0.0 before 6.2.5; Apache ActiveMQ Web: before 5.19.6, from 6.0.0 before 6.2.5. Users are recommended to upgrade to version 6.2.5 or 5.19.6, which fixes the issue.
CVSS metrics
6 scores · 6 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
- OSV · DebianEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
- OSV · ChainguardEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
- OSV · MavenEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
- NVDNIST6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
EPSS trend
Probability
0.72%
Chance of exploitation in the next 30 days
Percentile
53%
Versus all other CVEs
30-day change
+0.16 pp
From 0.56% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
- CWE-915Improperly Controlled Modification of Dynamically-Determined Object AttributesThe product receives input from an upstream component that specifies multiple attributes, properties, or fields that are to be initialized or updated in an object, but it does not properly control which attributes can be modified.
Affected systems
Chainguard4 products
- apache-activemq-6.1All versions (No fix recorded)
- apache-activemq-fips-6.1All versions (No fix recorded)
- geoserver-2.27-community< 2.27.5-r9
- geoserver-2.28-community< 2.28.3-r7
Org.apache.activemq3 products
- activemq-all< 5.19.6 | ≥ 6.0.0, < 6.2.5
- activemq-broker< 5.19.6 | ≥ 6.0.0, < 6.2.5
- apache-activemq< 5.19.6 | ≥ 6.0.0, < 6.2.5
Apache2 products
- activemq< 5.19.6 | ≥ 6.0.0, < 6.2.5
- activemq_web< 5.19.6 | ≥ 6.0.0, < 6.2.5
Apache software foundation2 products
- apache activemq< 5.19.6 | ≥ 6.0.0, < 6.2.5
- apache activemq web< 5.19.6 | ≥ 6.0.0, < 6.2.5
Debian1 product
- activemqAll versions (No fix recorded)
Ubuntu1 product
- activemqAll versions (No fix recorded)
6 vendors · 13 products
References
10 links- activemq.apache.org/security-advisories.data/CVE-2026-41043-announcement.txtVendor AdvisoryAdvisoryWEB
- github.com/apache/activemqPACKAGE