GHSA-vw3h-q6xq-jjm5
OpenClaw: Voice-call realtime WebSocket accepted oversized frames
Packages
Details
As written in the advisory (Markdown source, shown as plain text).
## 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 `[email protected]` 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.
References
External links from the advisory. They lead to third-party sites.
- 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