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Advisory severityHigh8.7Apache Software Foundation Updated

High [CVE-2026-73095] Allocation of Resources Without Limits or Throttling vulnerability in Apache Juneau

This high-severity Apache Software Foundation advisory covers CVE-2026-73095 affecting Apache Juneau.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.

CVE-2026-73095 Source published Source updated

VulniPulse record published Record updated

CVE-2026-73095
Affected products & platforms
Apache Software FoundationUnclassified
Open source advisory

Summary

Allocation of Resources Without Limits or Throttling vulnerability in Apache Juneau.

The MessagePack parser, which the REST server enables by default, sizes buffers from length values in the input. An unauthenticated client can send a few bytes that force a multi-gigabyte allocation and an OutOfMemoryError, causing denial of service.

Related unbounded allocations in REST request handling (multipart uploads and request reader buffers) are fixed at the same time.

This issue affects Apache Juneau: through 9.2.0.

Users are recommended to upgrade to version 9.2.1, which fixes the issue.

Is CVE-2026-73095 exploited?

No exploitation is reported in the sources VulniPulse tracks: CVE-2026-73095 is not in the CISA KEV catalog (checked ) and this advisory does not report exploitation. That is not proof the vulnerability cannot be exploited.

How do I fix CVE-2026-73095?

Upgrade to a fixed release named by Apache:

  • 9.2.1

Confirm against the vendor advisory before you patch.

Affected versions
  • through 9.2.0

Official advisory · high-confidence parse· fetched 2 days ago·verify at source

Fixed versions
  • 9.2.1

Official advisory · high-confidence parse· fetched 2 days ago·verify at source

Mitigation checklist

Recommended fix / mitigation
  • Users are recommended to upgrade to version 9.2.1, which fixes the issue.

Official advisory · high-confidence parse· fetched 2 days ago·verify at source

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