CVE-2026-90584 Details
Description
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.
A denial-of-service vulnerability has been identified in TooTallNate Java-WebSocket versions through 1.6.1. The issue arises in the fragmentation handling of the WebSocket protocol, specifically in the 'Draft_6455' implementation. The vulnerability allows for unbounded memory allocation by exploiting the handling of CONTINUOUS frames, which can bypass configured size limits and lead to resource exhaustion. This flaw can be exploited remotely, causing the server to run out of memory and potentially crash.
A pull request has been submitted to address this vulnerability by capping the default 'maxFrameSize' and enforcing the limit before allocating resources. This fix is pending acceptance.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Sep 13, 2026CISA-ADP
Assessed Sep 14, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/TooTallNate/Java-WebSocket/ | [email protected] | ProductSource CodeVendor |
| https://github.com/TooTallNate/Java-WebSocket/issues/1508 | [email protected] | ExploitIssue TrackingTechnical AnalysisVendor |
| https://github.com/TooTallNate/Java-WebSocket/pull/1509 | [email protected] | Issue TrackingVendor |
| https://vuldb.com/cve/CVE-2026-90584 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/submit/913786 | [email protected] | Issue TrackingPermission Required |
| https://vuldb.com/vuln/403169 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/vuln/403169/cti | [email protected] | Content Wall |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-400 | Uncontrolled Resource Consumption | [email protected] |
| CWE-770 | Allocation of Resources Without Limits or Throttling | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| TooTallNate Java-WebSocket | <= 1.6.1 (semver) |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 14, 2026 | CVE Modified | CISA-ADP |
| Sep 13, 2026 | New CVE Received | [email protected] |