OpenClaw's complex interpreter pipelines could skip exec script preflight validation
Summary
Before OpenClaw 2026.4.2, exec script preflight validation could fail open on complex interpreter invocations such as pipes or other non-simple command forms. In those cases, script-content validation could be skipped entirely.
Impact
An attacker-controlled command shape could bypass the intended preflight validation for script execution. This weakened a defense-in-depth guard that was meant to block unsafe script content before execution.
Affected Packages / Versions
- Package:
openclaw(npm) - Affected versions:
<= 2026.4.1 - Patched versions:
>= 2026.4.2 - Latest published npm version:
2026.4.1
Fix Commit(s)
8aceaf5d0f0ec552b75a792f7f0a3bfa5b091513— close the fail-open bypass in exec script preflight
Release Process Note
The fix is present on main and is staged for OpenClaw 2026.4.2. Publish this advisory after the 2026.4.2 npm release is live.
Thanks @iskindar for reporting, and thanks @wsparks-vc for coordination.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | openclaw | < 2026.4.2 | 2026.4.2 |
References
- https://github.com/openclaw/openclaw/security/advisories/GHSA-fvx6-pj3r-5q4q
- https://nvd.nist.gov/vuln/detail/CVE-2026-34425
- https://github.com/openclaw/openclaw/commit/8aceaf5d0f0ec552b75a792f7f0a3bfa5b091513
- https://github.com/openclaw/openclaw
- https://www.vulncheck.com/advisories/openclaw-shell-bleed-protection-preflight-validation-bypass
- Weakness (CWE)
CWE-184- Platform
- npm
- Package
openclaw- Disclosed
- 06.04.2026
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-fvx6-pj3r-5q4q - CC BY 4.0
Vulnerability history: openclaw
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 588
- First → latest
- 02.2026 07.2026
- Without a fix
- 9
- Exploited in attacks
- 0
Severity breakdown
- Critical 20
- High 215
- Medium 299
- Low 54
Disclosures per year
- 2026: 588
-
OpenClaw's complex interpreter pipelines could skip exec script preflight validation this entry
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