CVE Catalog

CVE-2026-49361

HighCVSS 7.5
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.58%

44th percentile - higher than 44% of all known CVEs

Summary

JVM heap exhaustion vulnerability in Apache Fluss. An unauthenticated remote attacker can send crafted frame headers to exhaust memory on TabletServer and CoordinatorServer.

Risk Assessment

An attacker can cause a denial of service (DoS) by exhausting JVM heap memory, making the server unavailable.

Recommendation

Upgrade Apache Fluss to version 0.9.1, which fixes the issue.

Related vulnerabilities

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS