GitHub Advisoryadvisory · npm

GHSA-rm59-992w-x2mv OpenClaw is vulnerable to unauthenticated resource exhaustion through its voice call webhook handling

MEDIUM Published 2026-03-26 Modified 2026-04-10 Official page ↗
Aliases
CVE-2026-35626
Ecosystem
npm
Packages
openclaw
Severity
Moderate
CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U
Weaknesses
CWE-400
Reviewed
2026-03-26

Affected packages

• npm openclaw: < 2026.3.22 → fixed in 2026.3.22

Description

Summary Voice Call webhook handling buffered request bodies before provider signature checks, enabling bounded unauthenticated resource exhaustion. Affected Packages / Versions • Package: `openclaw` (npm) • Affected: = 2026.3.22 • Latest released tag checked: `v2026.3.23-2` (`630f1479c44f78484dfa21bb407cbe6f171dac87`) • Latest published npm version checked: `2026.3.23-2` Fix Commit(s) • `651dc7450b68a5396a009db78ef9382633707ead` Release Status The fix shipped in `v2026.3.22` and remains present in `v2026.3.23` and `v2026.3.23-2`. Code-Level Confirmation • extensions/voice-call/src/webhook.ts now enforces header gating and shared pre-auth body caps before reading attacker-controlled request bodies. • extensions/voice-call/src/webhook.test.ts ships regression coverage for missing-signature, oversize, and timeout pre-auth webhook cases. OpenClaw thanks @SEORY0 for reporting.

Related

Alias · CVE (1)

  • CVE-2026-35626 OpenClaw before 2026.3.22 contains an unauthenticated resource exhaustion vulnerability in voice call webhook handling that buffers request… vulnerability

Weakness · CWE (1)

  • CWE-400 Uncontrolled Resource Consumption weakness

References