What is CVE-2026-57822?

CVE-2026-57822 is a medium-severity vulnerability in Apache Software Foundation Activemq Artemis, classified under Deserialization of Untrusted Data. CVSS score: 6.5/10. Published 2026-09-10.

How severe is CVE-2026-57822?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Deserialization in Apache Software Foundation Activemq Artemis

CVE-2026-57822

When the broker is processing message-based management requests, sent by an authenticated messaging client that is authorized with MANAGE permission to perform management-via-messaging, the parameter processing can trigger Java deserialization of certain method parameters that the broker will not utilise. The permitted types allow to craft a payload causing excessive computation and pinning the processing thread, leading to denial of service. This issue affects Apache Artemis: from 2.50.0 through 2.56.0; Apache ActiveMQ Artemis: from 1.3.0 through 2.44.0. Users are recommended to upgrade to version 2.57.0, which fixes the issue.

Vulnerability class: Insecure Deserialization

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

References

security@apache.org (vendor-advisory)
af854a3a-2127-422b-91ae-364da2661108

Frequently asked questions

What is CVE-2026-57822?: CVE-2026-57822 is a medium-severity vulnerability in Apache Software Foundation Activemq Artemis, classified under Deserialization of Untrusted Data. CVSS score: 6.5/10. Published 2026-09-10.
How severe is CVE-2026-57822?: Medium severity. CVSS v3 base score is 6.5 out of 10.