CVE-2026-43529

Derived preflight disclosure via script-path race

Published May 5, 2026 · Updated May 5, 2026

TOCTOU in OpenClaw before 2026.4.10 allows local users to expose derived preflight content by racing a workspace script path. validateScriptFileForShellBleed validates a pathname, then reads that mutable path without pinning the validated file identity. Exploitation requires workspace write access and precise timing; exposure is limited to derived tokens, line numbers, or a JavaScript line.

CVSS severity2.0
Low
EPSS probability0.08%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

TOCTOU in OpenClaw before 2026.4.10 allows local users to expose derived preflight content by racing a workspace script path. validateScriptFileForShellBleed validates a pathname, then reads that mutable path without pinning the validated file identity. Exploitation requires workspace write access and precise timing; exposure is limited to derived tokens, line numbers, or a JavaScript line.

The record

CVE
CVE-2026-43529
Published
May 5, 2026
Updated
May 5, 2026
Vendor
OpenClaw Foundation
Product
OpenClaw
Classifications
CWE-367
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 5, 2026CVE publishedPublication date reported by the CVE source.
  2. May 5, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <2026.4.10

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

OpenClaw Foundation · OpenClawversion=0 <2026.4.10

Published CVSS scores

2.5VulnCheckCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
2.0VulnCheckCVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-367Time-of-check Time-of-use (TOCTOU) Race Condition

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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