Apache Fluss versions prior to 0.9.1 configure the Netty LengthFieldBasedFrameDecoder with Integer.MAX_VALUE as the maximum frame length, allowing unauthenticated remote attackers to exhaust JVM heap memory on TabletServer and CoordinatorServer by sending specially crafted frame headers, resulting in denial of service.

This issue affects Apache Fluss (incubating): 0.8.0 and 0.9.0.

Users are recommended to upgrade to version 0.9.1, which fixes the issue.

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History

Mon, 01 Jun 2026 18:30:00 +0000

Type Values Removed Values Added
First Time appeared Apache
Apache fluss
CPEs cpe:2.3:a:apache:fluss:*:*:*:*:*:*:*:*
Vendors & Products Apache
Apache fluss

Mon, 01 Jun 2026 17:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 01 Jun 2026 11:30:00 +0000

Type Values Removed Values Added
References

Mon, 01 Jun 2026 09:15:00 +0000

Type Values Removed Values Added
Description Apache Fluss versions prior to 0.9.1 configure the Netty LengthFieldBasedFrameDecoder with Integer.MAX_VALUE as the maximum frame length, allowing unauthenticated remote attackers to exhaust JVM heap memory on TabletServer and CoordinatorServer by sending specially crafted frame headers, resulting in denial of service. This issue affects Apache Fluss (incubating): 0.8.0 and 0.9.0. Users are recommended to upgrade to version 0.9.1, which fixes the issue.
Title Apache Fluss Netty Frame Decoder Memory Exhaustion Vulnerability
Weaknesses CWE-400
CWE-770
References

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cve-icon MITRE

Status: PUBLISHED

Assigner: apache

Published:

Updated: 2026-06-01T16:48:51.369Z

Reserved: 2026-05-29T15:44:37.184Z

Link: CVE-2026-49361

cve-icon Vulnrichment

Updated: 2026-06-01T09:52:52.052Z

cve-icon NVD

Status : Analyzed

Published: 2026-06-01T09:16:20.880

Modified: 2026-06-01T18:24:06.450

Link: CVE-2026-49361

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-01T18:45:34Z

Weaknesses