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CVE-2026-43530

8.7
High
EPSS 0.36%Patch availableMay 5, 2026

Weak applet exec-approval binding enables bypass of BusyBox/Toybox applet execution.

common questions

Is CVE-2026-43530 being exploited?

Not confirmed. CVE-2026-43530 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.36% probability of exploitation in the next 30 days.

How severe is CVE-2026-43530?

CVE-2026-43530 is rated High with a CVSS score of 8.7. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.

Is there a patch for CVE-2026-43530?

Yes. A fix has been recorded for CVE-2026-43530. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.

What does CVE-2026-43530 affect?

CVE-2026-43530 affects OpenClaw 2026.2.23 prior to 2026.4.12, BusyBox applets, Toybox applets. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.

What should I do about CVE-2026-43530?

Patch when available; upgrade OpenClaw to fixed version; harden applet invocation controls

Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.

executive summary
technical analysis
affected
OpenClaw 2026.2.23 prior to 2026.4.12BusyBox appletsToybox applets
impact

Bypass applet exec approval to run unintended applets via multi-call binaries; may enable code execution or policy evasion.

action required

Patch when possible

affected versions
OpenClaw OpenClaw
  • affected>= 2026.2.23 and < 2026.4.12
vendor says fixed in2026.4.12

As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.

how to fix
Remediation steps are tailored for users whose stack is affected. Add this technology to your stack to see the fix checklist.
references
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