CVE-2026-32974: OpenClaw < 2026.3.12 - Forged Event Injection via Feishu Webhook Verification Token

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-03-29 · updated 2026-06-17
Weakness: CWE-347

Description

OpenClaw before 2026.3.12 contains an authentication bypass vulnerability in Feishu webhook mode when only verificationToken is configured without encryptKey, allowing acceptance of forged events. Unauthenticated network attackers can inject forged Feishu events and trigger downstream tool execution by reaching the webhook endpoint.

Affected products

OpenClaw: before 2026.3.12 — fixed in 2026.3.12

How to fix

Upgrade to a fixed version: OpenClaw 2026.3.12. Check the vendor advisory for mitigations.

References

https://github.com/openclaw/openclaw/security/advisories/GHSA-g353-mgv3-8pcj
https://www.vulncheck.com/advisories/openclaw-forged-event-injection-via-feishu-webhook-verification-token

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