Vulnerability · Published Apr 23, 2026 · Assigned by VulnCheck
CVE-2026-41355OpenClaw < 2026.3.28 - Arbitrary Code Execution via Mirror Mode Sandbox File Conversion
High 7.3
In plain English
A high-severity security flaw in OpenClaw from OpenClaw. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 2% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)7.3High
Exploit odds (30 days)0.1%top 97.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
OpenClaw before 2026.3.28 contains an arbitrary code execution vulnerability in mirror mode that converts untrusted sandbox files into workspace hooks. Attackers with mirror mode access can execute arbitrary code on the host during gateway startup by exploiting enabled workspace hooks.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| npm | openclaw | 2026.3.28 | GHSA-42mx-vp8m-j7qh |
Affected products (as reported)
Weakness: CWE-829 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
References
- GitHub Security Advisory (GHSA-42mx-vp8m-j7qh) vendor-advisory
- Patch Commit patch
- VulnCheck Advisory: OpenShell < 2026.3.28 - Arbitrary Code Execution via Mirror Mode Sandbox File Conversion third-party-advisory