CVE-2026-43529 json
OpenClaw < 2026.4.10 - Time-of-Check-Time-of-Use (TOCTOU) Race Condition in exec Script Preflight Validator
published 2026-04-16 6 mo ago modified 2026-06-17 4 mo ago also GHSA-gj9q-8w99-mp8j , EUVD-2026-27269
- cvss
- 2.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.1%
- EPSS 0.1% chance of exploitation in 30 days, percentile 0%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- npm openclaw 2026.4.10
- OpenClaw OpenClaw 2026.4.10
- github.com/openclaw/openclaw@b024fae commit
- github.com/openclaw/openclaw#62333 pull request
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 6 mo ago
Exploit prediction
0.08% chance of exploitation in the next 30 days, higher than 0% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 2.0 | CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N |
| CNA | 3.1 | 2.5 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N |
| CNA | 4.0 | 2.0 | CVSS:4.0/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 |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | openclaw | <2026.4.10 |
2026.4.10 |
Affected products
- OpenClaw OpenClaw
Classification
- Weakness
-
- CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition
References
-
github.com
/openclaw/openclaw/commit/b024fae9e5df43e9b69b2daebb72be3469d52e91
patch, web
-
github.com
/openclaw/openclaw/pull/62333
web
-
github.com
/openclaw/openclaw/security/advisories/GHSA-gj9q-8w99-mp8j
vendor-advisory, web
-
vulncheck.com
/advisories/openclaw-time-of-check-time-of-use-toctou-race-condition-in-exec-script-preflight-validator
third-party-advisory
-
github.com
/openclaw/openclaw
package
Sources
- CVE List CVE-2026-43529
- GitHub Advisory GHSA-gj9q-8w99-mp8j
- NVD CVE-2026-43529
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