# CVE-2026-35626

## Summary

- **CVE ID:** CVE-2026-35626
- **Severity:** MEDIUM
- **CVSS Score:** 6.9 (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N)
- **CWE:** CWE-405
- **Published:** Apr 9, 2026
- **Last Modified:** Jun 23, 2026

## Description

OpenClaw before 2026.3.22 contains an unauthenticated resource exhaustion vulnerability in voice call webhook handling that buffers request bodies before provider signature checks. Attackers can send large or malicious webhook requests to exhaust server resources without authentication by bypassing signature validation.

## Affected Products

- OpenClaw — OpenClaw (0)
- OpenClaw — OpenClaw (2026.3.22)

## References

- [CNA](https://github.com/openclaw/openclaw/security/advisories/GHSA-rm59-992w-x2mv)
- [CNA](https://github.com/openclaw/openclaw/commit/630f1479c44f78484dfa21bb407cbe6f171dac87)
- [CNA](https://github.com/openclaw/openclaw/commit/651dc7450b68a5396a009db78ef9382633707ead)
- [CNA](https://www.vulncheck.com/advisories/openclaw-unauthenticated-resource-exhaustion-via-voice-call-webhook)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.49%
- **EPSS Percentile:** 40.7

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._