| Component | OpenClaw |
| Severity | medium (CVSS 5.9) |
| CVSS vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N |
| Published (NVD) | 2026-03-05 |
| Last modified | 2026-09-17 |
| Affected versions | openclaw < 2026.2.3 |
| Fixed in | 2026.2.3 |
| Weakness | CWE-290 |
| CISA KEV | not listed |
NVD description
OpenClaw's voice-call plugin versions before 2026.2.3 contain an improper authentication vulnerability in webhook verification that allows remote attackers to bypass verification by supplying untrusted forwarded headers. Attackers can spoof webhook events by manipulating Forwarded or X-Forwarded-* headers in reverse-proxy configurations that implicitly trust these headers.
What to do
- Upgrade OpenClaw to
2026.2.3or later. - Do not expose the component's API or UI to the internet without authentication in front of it.
Sources
- NVD: CVE-2026-28465
- https://github.com/openclaw/openclaw/security/advisories/GHSA-3m3q-x3gj-f79x
- https://github.com/openclaw/openclaw/commit/a749db9820eb6d6224032a5a34223d286d2dcc2f
- https://www.vulncheck.com/advisories/openclaw-voice-call-webhook-verification-bypass-via-forwarded-headers
Read more
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