How severe is CVE-2026-43530?

No CVSS score has been assigned to CVE-2026-43530 yet. Review the advisory details and affected package list to assess your exposure.

Which packages are affected by CVE-2026-43530?

CVE-2026-43530 affects the following packages: openclaw (npm). Ecosystems affected: npm.

How do I fix CVE-2026-43530?

Update openclaw to 2026.4.12 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2026-43530 is resolved across your whole dependency graph.

How do I detect CVE-2026-43530 in my npm dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for openclaw, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

How do I mitigate CVE-2026-43530 if there is no patch (or I can't update yet)?

Put an independent control in front of the weakness: restrict the affected endpoint or interface to trusted networks, require an additional authentication factor or proxy-level check, and invalidate existing sessions and credentials in case the flaw has already been used.

Is CVE-2026-43530 actively exploited in the wild?

No public exploit code has been indexed for CVE-2026-43530 yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

What is the EPSS score for CVE-2026-43530?

CVE-2026-43530 has an EPSS (Exploit Prediction Scoring System) score of 0.4%, placing it in the 29th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

What type of vulnerability is CVE-2026-43530?

CVE-2026-43530 is classified as CWE-863 (CWE-863). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

When was CVE-2026-43530 published, and has it been updated?

CVE-2026-43530 was published on May 5, 2026 and was last updated on October 28, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

📦 npm

Not in CISA KEV

CVE-2026-43530 — openclaw

Fix: openclaw/openclaw@666f48d

CVE-2026-43530 is a CWE-863 vulnerability in openclaw. A fix is available for openclaw — see the affected versions and patch details below.

OpenClaw 2026.2.23 < 2026.4.12 - Weakened Exec Approval Binding via busybox and toybox Applet Execution

Also known asGHSA-2cq5-mf3v-mx44

Published

May 5, 2026

Updated

Oct 28, 2026

Affected

1 pkg

Patched

1 / 1

Exploits

None indexed

Exploitation data as of Oct 30, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

A successful exploit gives an attacker total control of the affected component, not partial access.
CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for CVE-2026-43530.

EPSS Exploitation Probability

via FIRST.org ↗

0.4%probability of exploitation in next 30 days

Lower Risk-0.26%

Lower risk than most CVEs29th percentile — riskier than 29% of all scored CVEsHighest risk

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

Real-World Exposure

1 pkg affected

How broadly this vulnerability is actually deployed: weekly install volume shows current usage, and reverse-dependency count shows how many other packages break if it stays unpatched.

132other npm packages depend on this — each one inherits the vulnerability until it's patched upstream

openclawnpm

3.4Mdownloads / week

Description

Summary

busybox and toybox applet execution weakened exec approval binding.

Affected Packages / Versions

Package: openclaw
Ecosystem: npm
Affected versions: >= 2026.2.23 < 2026.4.12
Patched versions: >= 2026.4.12

Impact

Opaque multi-call binaries such as busybox and toybox could obscure which applet or script-like behavior would actually run, weakening exec approval binding and risk classification.

Technical Details

The fix treats busybox and toybox as opaque mutable script runners and fails closed rather than binding unsafe applet invocations.

Fix

The issue was fixed in #65713. The first stable tag containing the fix is v2026.4.12, and [email protected] includes the fix.

Fix Commit(s)

666f48d9b882a8a1415ca53f9567c72499d850c9
PR: #65713

Release Process Note

Users should upgrade to openclaw 2026.4.12 or newer. The latest npm release, 2026.4.14, already includes the fix.

Credits

Thanks to @decsecre583 for reporting this issue.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
📦npm	`openclaw`	≥ 2026.2.23&&< 2026.4.12	2026.4.12`npm install openclaw@2026.4.12`

Affected Products

1 product · 1 configurations

Application

openclawopenclaw

≥ 2026.2.23 && < 2026.4.12

range

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for openclaw, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update openclaw to 2026.4.12 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2026-43530 is resolved across your whole dependency graph.
Workarounds
Put an independent control in front of the weakness: restrict the affected endpoint or interface to trusted networks, require an additional authentication factor or proxy-level check, and invalidate existing sessions and credentials in case the flaw has already been used.

Frequently Asked Questions

## Summary busybox and toybox applet execution weakened exec approval binding. ## Affected Packages / Versions - Package: `openclaw` - Ecosystem: npm - Affected versions: `>= 2026.2.23 < 2026.4.12` - Patched versions: `>= 2026.4.12` ## Impact Opaque multi-call binaries such as `busybox` and `toybox` could obscure which applet or script-like behavior would actually run, weakening exec approval binding and risk classification. ## Technical Details The fix treats `busybox` and `toybox` as opaque mutable script runners and fails closed rather than binding unsafe applet invocations. ## Fix

O3 Security · Impact-Aware SCA

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