DEBIAN-CVE-2026-42253
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.
DEBIAN-CVE-2026-42253
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:DEBIAN-CVE-2026-42253
activemq
Source reference: /affected/0/package/name
- Affected versions
- 5.17.2+dfsg-2
Source reference:
/affected/0/versions5.17.2+dfsg-2+deb12u1Source reference:
/affected/0/versions5.17.6+dfsg-1Source reference:
/affected/0/versions5.17.6+dfsg-2Source reference:
/affected/0/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
activemq
Source reference: /affected/1/package/name
- Affected versions
- 5.17.6+dfsg-2
Source reference:
/affected/1/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "activemq",
"purl": "pkg:deb/debian/activemq?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"5.17.2+dfsg-2",
"5.17.2+dfsg-2+deb12u1",
"5.17.6+dfsg-1",
"5.17.6+dfsg-2"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-42253.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "activemq",
"purl": "pkg:deb/debian/activemq?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"5.17.6+dfsg-2"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-42253.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #56938 · Revision 1
- Added to Heist Feed
- Publisher date