Description
OpenClaw before 2026.4.8 contains a server-side request forgery vulnerability in Playwright redirect handling that allows attackers to bypass strict SSRF checks. Attackers can exploit request-time navigation to reach private targets that should be restricted by browser SSRF protections.
Published: 2026-04-28
Score: 4.8 Medium
EPSS: n/a
KEV: No
Impact: Server‑side request forgery that bypasses strict SSRF checks
Action: Apply Patch
AI Analysis

Impact

The vulnerability in OpenClaw versions prior to 2026.4.8 allows an attacker to trigger Playwright’s redirect handling in a way that circumvents the strict browser‑based SSRF safeguards. By submitting a specially crafted navigation request, an attacker can cause OpenClaw to fetch resources at private or internal addresses that would normally be blocked, enabling potential data exfiltration or lateral movement.

Affected Systems

The flaw affects the OpenClaw OpenClaw application running on Node.js, specifically any deployment using an OpenClaw release older than 2026.4.8. Version information is limited to the major release identifier; later releases (2026.4.8 and beyond) are not impacted.

Risk and Exploitability

With a CVSS score of 4.8 the impact is considered moderate, and the EPSS score is not available, indicating no publicly reported exploitation but no certainty of low risk. The vulnerability is not listed in the CISA KEV catalog. Exploitation requires remote code that can instruct OpenClaw to perform a navigation request; no local privilege escalation or privilege escalation is required. The likely attack vector is remote, leveraging HTTP POST or other request mechanisms to trigger the redirect.

Generated by OpenCVE AI on April 28, 2026 at 22:53 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Upgrade OpenClaw to version 2026.4.8 or later. This version contains the Playwright redirect handling fix.
  • If an immediate upgrade is not possible, limit the OpenClaw service’s outbound connectivity to block traffic to private IP ranges through firewall rules or network ACLs.
  • Consider placing the OpenClaw service in an isolated network segment with strict egress controls to reduce the potential impact of an SSRF exploit.

Generated by OpenCVE AI on April 28, 2026 at 22:53 UTC.

Tracking

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Advisories

No advisories yet.

History

Tue, 28 Apr 2026 19:15:00 +0000

Type Values Removed Values Added
Description OpenClaw before 2026.4.8 contains a server-side request forgery vulnerability in Playwright redirect handling that allows attackers to bypass strict SSRF checks. Attackers can exploit request-time navigation to reach private targets that should be restricted by browser SSRF protections.
Title OpenClaw < 2026.4.8 - Strict Browser SSRF Bypass via Playwright Redirect Handling
First Time appeared Openclaw
Openclaw openclaw
Weaknesses CWE-918
CPEs cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*
Vendors & Products Openclaw
Openclaw openclaw
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:L/A:N'}

cvssV4_0

{'score': 4.8, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:H/SI:L/SA:N'}


Subscriptions

Openclaw Openclaw
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-04-28T18:10:19.089Z

Reserved: 2026-04-27T11:40:07.151Z

Link: CVE-2026-42430

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-04-28T19:37:46.907

Modified: 2026-04-28T20:10:23.367

Link: CVE-2026-42430

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-04-28T23:00:13Z

Weaknesses