What is CVE-2026-27488?

CVE-2026-27488 is a high-severity vulnerability in Openclaw, classified under Server-Side Request Forgery (SSRF). CVSS score: 7.3/10. Published 2026-02-21.

How severe is CVE-2026-27488?

High severity. CVSS v3 base score is 7.3 out of 10.

SSRF in Openclaw

CVE-2026-27488

OpenClaw is a personal AI assistant. In versions 2026.2.17 and below, Cron webhook delivery in src/gateway/server-cron.ts uses fetch() directly, so webhook targets can reach private/metadata/internal endpoints without SSRF policy checks. This issue was fixed in version 2026.2.19.

Vulnerability class: SSRF (Server-Side Request Forgery)

Published 2026-02-21 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.

EPSS exploit prediction

EPSS: 0.004 (35.4th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 35th percentile — 35.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.001

Affected products

Openclaw — versions < 2026.2.19

Weakness classification (CWE)

CWE-918 — Server-Side Request Forgery (SSRF)

References

github.com/openclaw/openclaw/security/advisories/GHSA-w45g-5746-x9fp (Vendor Advisory)
github.com/openclaw/openclaw/commit/99db4d13e5c139883ef0def9ff963e9273179655 (Patch)
github.com/openclaw/openclaw/releases/tag/v2026.2.19 (Release Notes)

Frequently asked questions

What is CVE-2026-27488?: CVE-2026-27488 is a high-severity vulnerability in Openclaw, classified under Server-Side Request Forgery (SSRF). CVSS score: 7.3/10. Published 2026-02-21.
How severe is CVE-2026-27488?: High severity. CVSS v3 base score is 7.3 out of 10.