CVE catalog
CVE-2026-53917
Memory Allocation with Excessive Size Value vulnerability in Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Client, Apache ActiveMQ Broker. An authenticated user can cause a broker DoS by send
- Severity
- High · CVSS 7.5
- Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.74% · Oct 25, 2026
Memory Allocation with Excessive Size Value vulnerability in Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Client, Apache ActiveMQ Broker. An authenticated user can cause a broker DoS by sending a crafted OpenWire Message with a large encoded size value for the map. OpenWire message property maps are unmarshaled without size validation which can trigger OOM and crash the broker. This issue affects Apache ActiveMQ: before 5.19.8, from 6.0.0 before 6.2.7; Apache ActiveMQ All: before 5.19.8, from 6.0.0 before 6.2.7; Apache ActiveMQ Client: before 5.19.8, from 6.0.0 before 6.2.7; Apache ActiveMQ Broker: before 5.19.8, from 6.0.0 before 6.2.7. Users are recommended to upgrade to version 6.2.7 or 5.19.8, which fixes the issue.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | activemq | sid | 5.17.6+dfsg-2 | vulnerable |
| Debian | activemq | trixie | 5.17.6+dfsg-2 | vulnerable |
| Debian | activemq | bookworm | 5.17.2+dfsg-2+deb12u1 | vulnerable |
| Debian | activemq | bookworm-security | 5.17.2+dfsg-2+deb12u1 | vulnerable |
| Cpe | activemq | Not reported | Not reported | vulnerable |
| Cpe | activemq | Not reported | 5.19.8 | fixed |
| Cpe | activemq | Not reported | 6.2.7 | fixed |
| Cpe | activemq_broker | Not reported | 5.19.8 | fixed |
| Cpe | activemq_broker | Not reported | 6.2.7 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | activemq | source | sid | (unfixed) | not yet assigned | Not reported | [1141385] |
| Debian | activemq | source | trixie | (unfixed) | not yet assigned | Not reported | [1141385] |
| Debian | activemq | source | bookworm | (unfixed) | not yet assigned | Not reported | [1141385] |
| Cpe | activemq | cpe | Not reported | 5.19.8 | Not reported | Not reported | Not reported |
| Cpe | activemq | cpe | Not reported | 6.2.7 | Not reported | Not reported | Not reported |
| Cpe | activemq_broker | cpe | Not reported | 5.19.8 | Not reported | Not reported | Not reported |
| Cpe | activemq_broker | cpe | Not reported | 6.2.7 | Not reported | Not reported | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [activemq]Affected
Details (4)
5.17.2+dfsg-2+deb12u1· all · bookwormAffected
nvd · activemq · debian · bookworm; nvd · activemq · debian · 12
5.17.2+dfsg-2+deb12u1· all · bookwormAffected
nvd · activemq · debian · bookworm; nvd · activemq · debian · 12
5.17.2+dfsg-2+deb12u1· all · bookworm-securityAffected
nvd · activemq · debian · bookworm; nvd · activemq · debian · 12
5.17.2+dfsg-2+deb12u1· all · bookworm-securityAffected
nvd · activemq · debian · bookworm; nvd · activemq · debian · 12
- [libactivemq-java]Affected
Source package: [activemq]
Details (4)
5.17.2+dfsg-2+deb12u1· all · bookwormAffected
nvd · activemq · debian · bookworm; nvd · activemq · debian · 12
5.17.2+dfsg-2+deb12u1· all · bookwormAffected
nvd · activemq · debian · bookworm; nvd · activemq · debian · 12
5.17.2+dfsg-2+deb12u1· all · bookworm-securityAffected
nvd · activemq · debian · bookworm; nvd · activemq · debian · 12
5.17.2+dfsg-2+deb12u1· all · bookworm-securityAffected
nvd · activemq · debian · bookworm; nvd · activemq · debian · 12
[Debian 13 (Trixie)]
- [activemq]Affected
Details (2)
5.17.6+dfsg-2· all · trixieAffected
nvd · activemq · debian · 13
5.17.6+dfsg-2· all · trixieAffected
nvd · activemq · debian · 13
- [libactivemq-java]Affected
Source package: [activemq]
Details (2)
5.17.6+dfsg-2· all · trixieAffected
nvd · activemq · debian · 13
5.17.6+dfsg-2· all · trixieAffected
nvd · activemq · debian · 13
Observed:
References
- [https://nvd.nist.gov/vuln/detail/CVE-2026-53917]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-53917]
- [https://security-tracker.debian.org/tracker/CVE-2026-53917]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53917.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-3043.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]