Openclaw cli: OpenClaw: CDP /json/version WebSocket URL could pivot to untrusted second-hop targets (CVE-2026-43576)
Description
Openclaw CLI versions before 2026.4.5 have a vulnerability where the Chrome DevTools Protocol (CDP) /json/version WebSocket URL can redirect to untrusted hosts, allowing a second-hop SSRF-style pivot. This could cause a browser profile to trust a malicious WebSocket URL pointing to a different host. The issue is fixed in version 2026.4.5 and later.
CVSS v3.1
Score 7.7high
Affected software
Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability in openclaw CLI affects versions prior to 2026.4.5. The CDP /json/version endpoint returns a webSocketDebuggerUrl that could point to an untrusted second-hop target, enabling a server-side request forgery (SSRF)-style pivot. The fix involves normalizing and re-validating the WebSocket targets before establishing connections, preventing redirection to untrusted hosts. The fix was introduced in commit bc356cc8c2beaa747c71dd86cceab8f804699665 and merged via PR #60469. Users are advised to upgrade to version 2026.4.5 or newer, with 2026.4.14 including the fix.
Potential Impact
An attacker could exploit this vulnerability to cause a browser profile to trust a malicious WebSocket URL that points to a different host, enabling a second-hop SSRF-style pivot. This could lead to unauthorized access or interaction with unintended network targets. The CVSS score is 7.7 (high severity), indicating a significant impact on confidentiality without affecting integrity or availability.
Mitigation Recommendations
A patch is available and users should upgrade to openclaw version 2026.4.5 or later. The latest npm release, 2026.4.14, includes the fix. No additional mitigation steps are required beyond applying the official update.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- BREW-openclaw-cli-CVE-2026-43576
- Osv Schema Version
- 1.7.3
- Ecosystems
- ["Homebrew"]
- Cvss Version
- 3.1
Threat ID: 6ac2459412601ec6a3165c97
Added to database: 10/04/2026, 12:24:52 UTC
Last enriched: 10/04/2026, 12:41:20 UTC
Last updated: 10/04/2026, 16:08:38 UTC
Views: 2
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.