Vulnerability Report

CVE-2026-41338

Title: TOCTOU vulnerability in sandbox file operations

Arbitrary File Access

Proof Of Concept

No public PoC currently indexed for CVE-2026-41338.

CWE Category CWE-367
Published Date Apr 23, 2026
Modified Date Apr 28, 2026
Exploit Status Not Found
Score 4.3 CVSS v4.0
Exploit Probability (EPSS)
0.09%

Vulnerability Summary

CVE-2026-41338: OpenClaw before 2026.3.31 contains a time-of-check-time-of-use vulnerability in sandbox file operations that allows attackers to bypass fd-based defenses. Attackers can exploit check-then-act patterns in apply_patch, remove, and mkdir operations to manipulate files between validation and execution.

Impacted Vendors

O
openclaw 1

Reference Links

https://github.com/openclaw/openclaw/commit/32a4a47d602e0618f87b3e59f94d8c142767f860 https://github.com/openclaw/openclaw/security/advisories/GHSA-rm5c-4rmf-vvhw https://www.vulncheck.com/advisories/openclaw-time-of-check-time-of-use-toctou-vulnerability-in-sandbox-file-operations
CVSS v4.0
Source Entity [email protected]
Severity MEDIUM
4.3
Attack Vector
LOCAL
Complexity
HIGH
Privileges
N/A
Interaction
PASSIVE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
N/A
RAW VECTOR CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:P/VC:N/VI:H/VA:L/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
CVSS v3.1
Source Entity [email protected]
Severity MEDIUM
5.0
Attack Vector
LOCAL
Complexity
HIGH
Privileges
N/A
Interaction
REQUIRED
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:L

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2026-41338 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

Attack Vector Matrix

Access Vector LOCAL
Complexity HIGH
Privileges N/A
Interaction PASSIVE
CVSS Vector String CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:P/VC:N/VI:H/VA:L/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 Stack

No specific products linked.