2.5
LOW CVSS 3.1
CVE-2026-43529
OpenClaw < 2026.4.10 - Time-of-Check-Time-of-Use (TOCTOU) Race Condition in exec Script Preflight Validator
Description

OpenClaw before 2026.4.10 contains a time-of-check-time-of-use vulnerability in the validateScriptFileForShellBleed function that allows local attackers to bypass workspace boundary checks. An attacker with workspace write access can race-condition swap the target file between validation and preflight read, causing the validator to inspect a different file identity than the one that passed the initial boundary check.

INFO

Published Date :

May 5, 2026, 12:16 p.m.

Last Modified :

May 5, 2026, 12:16 p.m.

Remotely Exploit :

No
Affected Products

The following products are affected by CVE-2026-43529 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

No affected product recoded yet

CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 LOW 83251b91-4cc7-4094-a5c7-464a1b83ea10
CVSS 3.1 LOW [email protected]
CVSS 4.0 LOW 83251b91-4cc7-4094-a5c7-464a1b83ea10
CVSS 4.0 LOW [email protected]
Solution
Update OpenClaw to version 2026.4.10 or later to fix the TOCTOU vulnerability.
  • Update OpenClaw to version 2026.4.10 or later.
  • Apply vendor patches if available.
  • Review workspace access controls.
References to Advisories, Solutions, and Tools
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-43529 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-43529 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-43529 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2026-43529 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by [email protected]

    May. 05, 2026

    Action Type Old Value New Value
    Added Description OpenClaw before 2026.4.10 contains a time-of-check-time-of-use vulnerability in the validateScriptFileForShellBleed function that allows local attackers to bypass workspace boundary checks. An attacker with workspace write access can race-condition swap the target file between validation and preflight read, causing the validator to inspect a different file identity than the one that passed the initial boundary check.
    Added CVSS V4.0 AV:L/AC:H/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
    Added CVSS V3.1 AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
    Added CWE CWE-367
    Added Reference https://github.com/openclaw/openclaw/commit/b024fae9e5df43e9b69b2daebb72be3469d52e91
    Added Reference https://github.com/openclaw/openclaw/security/advisories/GHSA-gj9q-8w99-mp8j
    Added Reference https://www.vulncheck.com/advisories/openclaw-time-of-check-time-of-use-toctou-race-condition-in-exec-script-preflight-validator
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.