Resource exhaustion in Tootallnate Java-Websocket
CVE-2026-90584
A weakness has been identified in TooTallNate Java-WebSocket up to 1.6.1. The impacted element is the function processFrameContinuousAndNonFin of the file Draft_6455.java of the component Fragmentation Handler. Executing a manipulation can lead to allocation of resources. The attack may be performed from remote. The exploit has been made available to the public and could be used for attacks. The pull request to fix this issue awaits acceptance.
Vulnerability class: DoS (Denial of Service)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.007 (54.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 54.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000
Affected products
- Tootallnate Java-Websocket — versions 1.6.0, 1.6.1
Weakness classification (CWE)
References
- vuldb.com/vuln/403169 (technical-description, vdb-entry)
- vuldb.com/vuln/403169/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-90584 (third-party-advisory)
- vuldb.com/submit/913786 (third-party-advisory)
- github.com/TooTallNate/Java-WebSocket/issues/1508 (issue-tracking, exploit)
- github.com/TooTallNate/Java-WebSocket/pull/1509 (issue-tracking, patch)
- github.com/TooTallNate/Java-WebSocket/ (product)
Frequently asked questions
- What is CVE-2026-90584?
- CVE-2026-90584 is a medium-severity vulnerability in Tootallnate Java-Websocket, classified under Uncontrolled Resource Consumption. CVSS score: 5.3/10. Published 2026-09-13.
- How severe is CVE-2026-90584?
- Medium severity. CVSS v3 base score is 5.3 out of 10.