CVE-2026-34425: Openclaw OpenClaw's Complex Interpreter Pipelines Could Vulnerability

MODERATE
Advisory Identifier: GHSA-fvx6-pj3r-5q4q
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CWE-184
Published
Advisory Summary

CVE-2026-34425 is a MODERATE openclaw's complex interpreter pipelines could vulnerability (CWE-184: Incomplete List of Disallowed Inputs) affecting Openclaw libraries in the npm ecosystem. The issue involves openclaw's complex interpreter pipelines could skip exec script preflight validation. Remediation is available by upgrading affected packages to version 2026.4.2.

CVE-2026-34425 at a Glance

CVE Identifier CVE-2026-34425
GHSA Identifier GHSA-fvx6-pj3r-5q4q
Severity MODERATE
CVSS v3.1 Base Score N/A
CWE Classification CWE-184: Incomplete List of Disallowed Inputs
Affected Product Openclaw
Package Ecosystem npm
Published Date
Last Updated

How to Fix CVE-2026-34425

To remediate this vulnerability, upgrade all affected Openclaw dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

openclaw fixed: 2026.4.2 
npm install openclaw@2026.4.2
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

npm ls openclaw

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2026-34425, inspect your project dependencies using npm:

npm ls openclaw

Analyze the terminal output to locate any version of Openclaw in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2026.4.2), your application is affected.

Note: The npm ls openclaw command inspects dependencies declared in your package.json and lockfile; it does not perform automated runtime dynamic scanning.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-184: Incomplete List of Disallowed Inputs, where the product implements a protection mechanism that relies on a list of inputs (or properties of inputs) that are not allowed by policy or otherwise require other action to neutralize before additional processing takes place, but the list is incomplete. In Openclaw, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

## 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.

CVE-2026-34425 Affected Openclaw Versions

1 component(s)
Fixed Versions:
2026.4.2
Product / Package Ecosystem Affected Versions Fixed Version
openclaw
npm/openclaw
npm
< 2026.4.2
2026.4.2

References

GitHub Advisory / Wiki ADVISORY
https://github.com/openclaw/openclaw/security/advisories/GHSA-fvx6-pj3r-5q4q
NVD — CVE-2026-34425 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-34425
Security Fix Commit FIX COMMIT
https://github.com/openclaw/openclaw/commit/8aceaf5d0f0ec552b75a792f7f0a3bfa5b091513
Openclaw Source Repository REPOSITORY
https://github.com/openclaw/openclaw
www.vulncheck.com/advisories/openclaw... WEB
https://www.vulncheck.com/advisories/openclaw-shell-bleed-protection-preflight-validation-bypass

Frequently Asked Questions

What is CVE-2026-34425?
CVE-2026-34425 is a security vulnerability in Openclaw involving OpenClaw's complex interpreter pipelines could skip exec script preflight validation under CWE-184: Incomplete List of Disallowed Inputs.
Which Openclaw versions are affected?
Affected versions include releases prior to 2026.4.2 across affected packages: openclaw.
What version fixes CVE-2026-34425?
Upgrading to 2026.4.2 (or the latest patched release for your respective branch) resolves the vulnerability.
Is openclaw affected?
Yes, openclaw is affected in releases prior to 2026.4.2. Upgrade your dependency to 2026.4.2 or later.
What CWE is associated with CVE-2026-34425?
CVE-2026-34425 is classified under CWE-184: Incomplete List of Disallowed Inputs (The product implements a protection mechanism that relies on a list of inputs (or properties of inputs) that are not allowed by policy or otherwise require other action to neutralize before additional processing takes place, but the list is incomplete.).
How can I check npm dependencies for CVE-2026-34425?
Run the dependency tree command: 'npm ls openclaw'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-fvx6-pj3r-5q4q",
  "modified" : "2026-04-06T22:53:48Z",
  "published" : "2026-04-06T22:53:48Z",
  "aliases" : [ "CVE-2026-34425" ],
  "summary" : "OpenClaw's complex interpreter pipelines could skip exec script preflight validation",
  "details" : "## Summary\n\nBefore 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.\n\n## Impact\n\nAn 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.\n\n## Affected Packages / Versions\n\n- Package: `openclaw` (npm)\n- Affected versions: `<= 2026.4.1`\n- Patched versions: `>= 2026.4.2`\n- Latest published npm version: `2026.4.1`\n\n## Fix Commit(s)\n\n- `8aceaf5d0f0ec552b75a792f7f0a3bfa5b091513` — close the fail-open bypass in exec script preflight\n\n## Release Process Note\n\nThe 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.\n\nThanks @iskindar for reporting, and thanks @wsparks-vc for coordination.",
  "severity" : [ ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "openclaw"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2026.4.2"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 2026.4.1"
    }
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/openclaw/openclaw/security/advisories/GHSA-fvx6-pj3r-5q4q"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-34425"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/openclaw/openclaw/commit/8aceaf5d0f0ec552b75a792f7f0a3bfa5b091513"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/openclaw/openclaw"
  }, {
    "type" : "WEB",
    "url" : "https://www.vulncheck.com/advisories/openclaw-shell-bleed-protection-preflight-validation-bypass"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-184" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-04-06T22:53:48Z",
    "nvd_published_at" : null
  }
}