OpenClaw up to 2026.3.30 Decompression failing open

Summaryinfo

A vulnerability marked as problematic has been reported in OpenClaw up to 2026.3.30. This affects an unknown function of the component Decompression Handler. The manipulation leads to failing open. This vulnerability is traded as CVE-2026-41334. It is possible to initiate the attack remotely. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in OpenClaw up to 2026.3.30. It has been rated as problematic. This issue affects an unknown code of the component Decompression Handler. The manipulation with an unknown input leads to a failing open vulnerability. Using CWE to declare the problem leads to CWE-636. When the product encounters an error condition or failure, its design requires it to fall back to a state that is less secure than other options that are available, such as selecting the weakest encryption algorithm or using the most permissive access control restrictions. Impacted is availability. The summary by CVE is:

OpenClaw before 2026.3.31 contains a decompression bomb vulnerability in image processing that fails to properly enforce pixel-limit guards on sips. Attackers can exploit this by uploading oversized images to cause denial of service through excessive memory consumption.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2026-41334 since 04/20/2026. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 2026.3.31 eliminates this vulnerability. Applying the patch 0ed4f8a72bb140045962e97ab01c94c076b758a4 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

• Artificial Intelligence Software

Name

• OpenClaw

Version

• 2026.3.0
• 2026.3.1
• 2026.3.2
• 2026.3.3
• 2026.3.4
• 2026.3.5
• 2026.3.6
• 2026.3.7
• 2026.3.8
• 2026.3.9
• 2026.3.10
• 2026.3.11
• 2026.3.12
• 2026.3.13
• 2026.3.14
• 2026.3.15
• 2026.3.16
• 2026.3.17
• 2026.3.18
• 2026.3.19
• 2026.3.20
• 2026.3.21
• 2026.3.22
• 2026.3.23
• 2026.3.24
• 2026.3.25
• 2026.3.26
• 2026.3.27
• 2026.3.28
• 2026.3.29
• 2026.3.30

License

• open-source

Website

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

CPE 2.3info

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Entryinfo

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

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