CVE-2026-41043

EUVD-2026-25411

24.04.2026, 11:16

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.

Cross-site Scripting

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
apache	CNA	6.5 MEDIUM	NETWORK	LOW	NONE	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Base Score

CVSS 3.x

EPSS Score

Percentile: Unknown

Early Detection

Affected products identified ahead of NVD analysis through intelligence sources.

Vendor	Product	Version	Source
apache	activemq	𝑥 < 5.19.6	CNA
apache	activemq	6.0.0 ≤ 𝑥 < 6.2.5	CNA

Debian Releases

Debian Product

Codename

activemq

bookworm	vulnerable
bookworm (security)	vulnerable
bullseye	vulnerable
bullseye (security)	vulnerable
sid	vulnerable
trixie	vulnerable

Ubuntu Releases

Ubuntu Product

Codename

activemq

bionic	needs-triage
focal	needs-triage
jammy	needs-triage
noble	needs-triage
questing	needs-triage
resolute	needs-triage
xenial	needs-triage

Common Weakness Enumeration

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
The software 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.

References

https://activemq.apache.org/security-advisories.data/CVE-2026-41043-announcement.txt

http://www.openwall.com/lists/oss-security/2026/04/23/5