OpenClaw up to 2026.3.30 apply_patch/remove/mkdir toctou

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
4.2$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in OpenClaw up to 2026.3.30. This affects the function apply_patch/remove/mkdir. Performing a manipulation results in toctou. This vulnerability is known as CVE-2026-41338. Attacking locally is a requirement. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in OpenClaw up to 2026.3.30. It has been classified as problematic. This affects the function apply_patch/remove/mkdir. The manipulation with an unknown input leads to a toctou vulnerability. CWE is classifying the issue as CWE-367. The product checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check. This can cause the product to perform invalid actions when the resource is in an unexpected state. This is going to have an impact on integrity, and availability. The summary by CVE is:

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.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-41338 since 04/20/2026. The exploitability is told to be difficult. Attacking locally is a requirement. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 2026.3.31 eliminates this vulnerability. Applying the patch 32a4a47d602e0618f87b3e59f94d8c142767f860 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at CERT Bund (WID-SEC-2026-0948). Be aware that VulDB is the high quality source for vulnerability data.

Affected

  • Open Source OpenClaw

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.2

VulDB Base Score: 3.6
VulDB Temp Score: 3.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 5.0
CNA Vector (VulnCheck): 🔒

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Toctou
CWE: CWE-367 / CWE-362
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: OpenClaw 2026.3.31
Patch: 32a4a47d602e0618f87b3e59f94d8c142767f860

Timelineinfo

04/20/2026 CVE reserved
04/24/2026 +4 days Advisory disclosed
04/24/2026 +0 days VulDB entry created
04/28/2026 +4 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: GHSA-rm5c-4rmf-vvhw
Status: Confirmed

CVE: CVE-2026-41338 (🔒)
GCVE (CVE): GCVE-0-2026-41338
GCVE (VulDB): GCVE-100-359295
CERT Bund: WID-SEC-2026-0948 - OpenClaw: Mehrere Schwachstellen

Entryinfo

Created: 04/24/2026 07:54
Updated: 04/28/2026 09:24
Changes: 04/24/2026 07:54 (78), 04/28/2026 09:24 (7)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Might our Artificial Intelligence support you?

Check our Alexa App!