🛡️ CVE-2026-53916 — activemq
Description
Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Stomp: Unbounded header buffer in STOMP NIO codec
Memory Allocation with Excessive Size Value vulnerability in Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Stomp.
An unauthenticated client that opens a STOMP NIO connection can send header bytes that never terminate which makes the broker buffer them without limit, exhausting the JVM heap.
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 Stomp: 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.
How this vulnerability can be exploited
This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity none, availability high.
Affected software
CVE-2026-53916 is recorded against 1 package.
- activemq
Timeline and source
Published on 6 July 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.
References
www.openwall.com (Web)
lists.apache.org (Web)
nvd.nist.gov (Web)
Details
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| activemq | — | — |
References
Similar Threats
- Unknown CLEANSTART-2026-CQ01177
- Unknown CLEANSTART-2026-KT07616
- Unknown CLEANSTART-2026-MQ18886
- Unknown CLEANSTART-2026-NU19941
- Medium CVE-2020-1941
More CVE 2026 advisories
Browse all of CVE 2026 in the advisory index.
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