OpenClaw: Voice-call realtime WebSocket accepted oversized frames
Summary
Voice-call realtime WebSocket accepted oversized frames.
Affected Packages / Versions
- Package:
openclaw - Ecosystem: npm
- Affected versions:
>= 2026.4.9 < 2026.4.10 - Patched versions:
>= 2026.4.10
Impact
The voice-call realtime WebSocket path could accept oversized frames, creating a remote availability risk for deployments exposing that webhook path.
Technical Details
The fix rejects oversized realtime WebSocket frames before processing them.
Fix
The issue was fixed in #63890. The first stable tag containing the fix is v2026.4.10, and openclaw@2026.4.14 includes the fix.
Fix Commit(s)
afadb7dae6738819ad9c7d2597ace0516957d20e- PR: #63890
Release Process Note
Users should upgrade to openclaw 2026.4.10 or newer. The latest npm release, 2026.4.14, already includes the fix.
Reporters
Thanks to G0odUser from ADLab of VenusTech Thanks to @zsxsoft, with sponsorship from @KeenSecurityLab and @qclawer for reporting this issue.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | openclaw | >= 2026.4.9, < 2026.4.10 | 2026.4.10 |
References
- https://github.com/openclaw/openclaw/security/advisories/GHSA-vw3h-q6xq-jjm5
- https://nvd.nist.gov/vuln/detail/CVE-2026-42437
- https://github.com/openclaw/openclaw/pull/63890
- https://github.com/openclaw/openclaw/commit/afadb7dae6738819ad9c7d2597ace0516957d20e
- https://github.com/openclaw/openclaw
- https://www.vulncheck.com/advisories/openclaw-denial-of-service-via-oversized-websocket-frames-in-voice-call-realtime-path
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H- Weakness (CWE)
CWE-400, CWE-770- Platform
- npm
- Package
openclaw- Disclosed
- 17.04.2026
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-vw3h-q6xq-jjm5 - CC BY 4.0
Vulnerability history: openclaw
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 588
- First → latest
- 02.2026 07.2026
- Without a fix
- 9
- Exploited in attacks
- 0
Severity breakdown
- Critical 20
- High 215
- Medium 299
- Low 54
Disclosures per year
- 2026: 588
-
OpenClaw: Voice-call realtime WebSocket accepted oversized frames this entry
Know which vulnerabilities affect your application
With the DockRay integration and software inventory enabled, DockRay checks reported component versions against known vulnerabilities and notifies you about confirmed matches. Coverage depends on the supported technology and available advisory data.