CVE•Published 2026-06-01•Modified 2026-06-01•0 articles on news•5 live references•NVD data

CVE-2026-49361Apache · Fluss

Vulnerability data via NVD (ingested)

CVSS v3.1

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS percentile

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Weaknesses (CWE)

CWE-400Uncontrolled Resource Consumption CWE-770Allocation of Resources Without Limits or Throttling

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.

Timeline

Published 2026-06-01

Modified 2026-06-01

External references

NVD MITRE Exploit-DB Sploitus VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag0 hosts

vuln:CVE-2026-49361

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Apache Fluss"

All exposed Apache Fluss instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Fluss"

HTTP body or banner mentions "Fluss" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2026-49361