What is CVE-2026-49361?

CVE-2026-49361 is a high-severity vulnerability in Apache Fluss, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2026-06-01.

How severe is CVE-2026-49361?

High severity. CVSS v3 base score is 7.5 out of 10.

Resource exhaustion in Apache Fluss

CVE-2026-49361

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 CoordinatorS…

Vulnerability class: DoS (Denial of Service)

EPSS: 0.002 (35.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Apache Fluss
Apache Software Foundation Fluss (Incubating) — versions 0.8.0, 0.9.0

Weakness classification (CWE)

References

security@apache.org (vendor-advisory, Mailing List, Vendor Advisory)
af854a3a-2127-422b-91ae-364da2661108 (Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2026-49361?: CVE-2026-49361 is a high-severity vulnerability in Apache Fluss, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2026-06-01.
How severe is CVE-2026-49361?: High severity. CVSS v3 base score is 7.5 out of 10.