CVE-2026-49361
7.5 · HIGHOverview
CVE-2026-49361 is a high-severity vulnerability affecting apache fluss. It was published on June 1, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical 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.
Remediation
Check the references section for vendor advisories and patches from apache. Update fluss to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| apache | fluss | >= 0.8.0, < 0.9.1 | Affected |
Frequently Asked Questions
What is CVE-2026-49361?
CVE-2026-49361 is a high-severity vulnerability affecting apache fluss. It was published on June 1, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).
How severe is CVE-2026-49361?
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2026-49361?
Check the references section for vendor advisories and patches from apache. Update fluss to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-49361?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-49361 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
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