@openclaw/voice-call (and the bundled copy shipped in openclaw) accepted media-stream WebSocket upgrades before stream validation. In reachable deployments, unauthenticated pre-start sockets could be held open and increase resource pressure.
openclaw (npm): vulnerable <= 2026.2.21-2, patched in 2026.2.22.@openclaw/voice-call (npm): vulnerable <= 2026.2.21, patched in 2026.2.22.Before this fix, the voice-call media-stream path upgraded sockets first and ran shouldAcceptStream() after a later start frame. This created a pre-auth window where remote clients could hold idle sockets without call/token validation.
Availability risk in deployments where the media-stream endpoint is reachable and streaming is enabled. Under sustained abuse, this could consume connection-related resources and degrade service for legitimate streams.
The fix adds layered controls in the media-stream path:
start frame quickly)1d8968c8a821ff1a05c294a1846b3bcb6f343794patched_versions is pre-set to 2026.2.22 so this advisory is ready to publish once npm openclaw@2026.2.22 and @openclaw/voice-call@2026.2.22 are released.
OpenClaw thanks @jiseoung for reporting.
| Software | From | Fixed in |
|---|---|---|
openclaw
|
- | 2026.2.22 |
@openclaw / voice-call
|
- | 2026.2.22 |
A security vulnerability is a weakness in software, hardware, or configuration that can be exploited to compromise confidentiality, integrity, or availability. Many vulnerabilities are tracked as CVEs (Common Vulnerabilities and Exposures), which provide a standardized identifier so teams can coordinate patching, mitigation, and risk assessment across tools and vendors.
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