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PatchSiren cyber security CVE debrief

CVE-2026-57822 Apache CVE debrief

A vulnerability in Apache Artemis allows an authenticated messaging client with MANAGE permission to cause denial of service via Java deserialization. The issue arises when the broker processes message-based management requests, leading to excessive computation and thread pinning. Users are recommended to upgrade to version 2.57.0 to fix the issue. This vulnerability affects Apache Artemis from 2.50.0 through 2.56.0 and Apache ActiveMQ Artemis from 1.3.0 through 2.44.0, and defenders should assess exposure and plan for an upgrade.

Vendor
Apache
Product
Artemis
CVSS
MEDIUM 6.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-09-10
Original CVE updated
2026-09-16
Advisory published
2026-09-10
Advisory updated
2026-09-16

Who should care

Defenders and administrators of Apache Artemis and Apache ActiveMQ Artemis systems should assess exposure and upgrade to version 2.57.0 to prevent potential denial of service attacks.

Why it matters

CVE-2026-57822 is a medium-severity vulnerability in Apache Artemis that allows an authenticated messaging client to cause denial of service via Java deserialization. Defenders and administrators of affected systems should assess exposure and upgrade to version 2.57.0 to prevent potential denial of service attacks.

  • Denial of service via excessive computation and thread pinning
  • Potential disruption of messaging services
  • Need for upgrade to version 2.57.0 for fix

Technical summary

The vulnerability allows an authenticated messaging client with MANAGE permission to cause excessive computation and pin the processing thread, leading to denial of service via Java deserialization of certain method parameters. This issue affects Apache Artemis from 2.50.0 through 2.56.0 and Apache ActiveMQ Artemis from 1.3.0 through 2.44.0. The broker's processing of message-based management requests can trigger the deserialization, which can be exploited to cause a denial of service. Defenders should focus on upgrading to version 2.57.0, which fixes the issue.

Defensive priority

Upgrade to version 2.57.0 to fix the issue

Recommended defensive actions

  • Upgrade to version 2.57.0
  • Review and update affected versions
  • Monitor for potential denial of service attacks
  • Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
  • Review compensating controls for exposed systems while remediation is scheduled and verified
  • Check relevant monitoring, detection, and logs for exposed assets that need extra review
  • Track exceptions, retest remediated assets, and close the item only after evidence is documented

Evidence notes

The issue affects Apache Artemis from 2.50.0 through 2.56.0 and Apache ActiveMQ Artemis from 1.3.0 through 2.44.0. The vulnerability allows an authenticated messaging client to cause excessive computation and pin the processing thread, leading to denial of service.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-57822 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-57822

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-57822 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-57822

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.