Server-Side Request Forgery (SSRF) in OpenClaw - CVE-2026-27488
Published: May 4, 2026
Vulnerability identifier: #VU129413
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-27488
CWE-ID: CWE-918
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: OpenClaw
Affected software:
OpenClaw
OpenClaw
Detailed vulnerability description
The vulnerability allows a remote attacker to access internal network resources.
The vulnerability exists due to improper control of outbound network requests in cron webhook delivery in src/gateway/server-cron.ts when processing webhook targets. A remote attacker can supply a webhook target that points to private, metadata, or internal endpoints to access internal network resources.
How to mitigate CVE-2026-27488
Install security update from vendor's website.