NVD Vulnerability Detail
Search Exploit, PoC
CVE-2026-42253
Summary

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.

Publication Date June 1, 2026, 6:16 p.m.
Registration Date June 2, 2026, 4:17 a.m.
Last Update June 2, 2026, 2:06 a.m.
CVSS3.1 : MEDIUM
スコア 6.1
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
攻撃元区分(AV) ネットワーク
攻撃条件の複雑さ(AC)
攻撃に必要な特権レベル(PR) 不要
利用者の関与(UI)
影響の想定範囲(S) 変更あり
機密性への影響(C)
完全性への影響(I)
可用性への影響(A) なし
Affected software configurations
Configuration1 or higher or less more than less than
cpe:2.3:a:apache:activemq:*:*:*:*:*:*:*:* 5.19.7
cpe:2.3:a:apache:activemq:*:*:*:*:*:*:*:* 6.0.0 6.2.6
cpe:2.3:a:apache:activemq_web:*:*:*:*:*:*:*:* 5.19.7
cpe:2.3:a:apache:activemq_web:*:*:*:*:*:*:*:* 6.0.0 6.2.6
Related information, measures and tools
Common Vulnerabilities List