VDB-351665 · CVE-2026-27670 · GHSA-r54r-wmmq-mh84

OpenClaw up to 2026.3.1 ZIP Extraction toctou

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4.4	$0-$5k	0.00

Summaryinfo

A vulnerability classified as problematic has been found in OpenClaw up to 2026.3.1. The affected element is an unknown function of the component ZIP Extraction. The manipulation leads to toctou. This vulnerability is referenced as CVE-2026-27670. The attack can only be performed from a local environment. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in OpenClaw up to 2026.3.1. It has been rated as problematic. This issue affects some unknown processing of the component ZIP Extraction. The manipulation with an unknown input leads to a toctou vulnerability. Using CWE to declare the problem leads to 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. Impacted is integrity, and availability. The summary by CVE is:

OpenClaw versions prior to 2026.3.2 contain a race condition vulnerability in ZIP extraction that allows local attackers to write files outside the intended destination directory. Attackers can exploit a time-of-check-time-of-use race between path validation and file write operations by rebinding parent directory symlinks to redirect writes outside the extraction root.

The advisory is shared at github.com. The identification of this vulnerability is CVE-2026-27670 since 02/23/2026. The exploitation is known to be difficult. An attack has to be approached locally. Neither technical details nor an exploit are publicly available.

Upgrading to version 2026.3.2 eliminates this vulnerability. Applying the patch 7dac9b05dd9d38dd3929637f26fa356fd8bdd107 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 databases at CNNVD (CNNVD-202603-3588) and CERT Bund (WID-SEC-2026-0573). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

Open Source OpenClaw

Productinfo

Type

Artificial Intelligence Software

Name

OpenClaw

Version

License

open-source

Website

Product: https://github.com/openclaw/openclaw/

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: 4.4
VulDB Meta Temp Score: 4.4

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

CNA Base Score: 5.3
CNA Vector (VulnCheck): 🔒

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

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

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: OpenClaw 2026.3.2
Patch: 7dac9b05dd9d38dd3929637f26fa356fd8bdd107

Timelineinfo

02/23/2026 CVE reserved
03/19/2026 +24 days Advisory disclosed
03/19/2026 +0 days VulDB entry created
03/23/2026 +4 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: GHSA-r54r-wmmq-mh84
Status: Confirmed

CVE: CVE-2026-27670 (🔒)
GCVE (CVE): GCVE-0-2026-27670
GCVE (VulDB): GCVE-100-351665
CERT Bund: WID-SEC-2026-0573 - OpenClaw: Mehrere Schwachstellen
CNNVD: CNNVD-202603-3588 - OpenClaw 安全漏洞

Entryinfo

Created: 03/19/2026 07:55
Updated: 03/23/2026 22:36
Changes: 03/19/2026 07:55 (78), 03/20/2026 18:32 (6), 03/22/2026 02:40 (1), 03/22/2026 17:21 (1), 03/23/2026 04:05 (7), 03/23/2026 22:36 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.