OpenClaw up to 2026.2.22 mimeType cross site scripting

Summaryinfo

A vulnerability was found in OpenClaw up to 2026.2.22 and classified as problematic. This vulnerability affects unknown code. Such manipulation of the argument mimeType leads to cross site scripting. This vulnerability is uniquely identified as CVE-2026-32040. Local access is required to approach this attack. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in OpenClaw up to 2026.2.22. Affected by this issue is an unknown code. The manipulation of the argument mimeType with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Impacted is integrity. CVE summarizes:

OpenClaw versions prior to 2026.2.23 contain an html injection vulnerability in the HTML session exporter that allows attackers to execute arbitrary javascript by injecting malicious mimeType values in image content blocks. Attackers can craft session entries with specially crafted mimeType attributes that break out of the img src data-URL context to achieve cross-site scripting when exported HTML is opened.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2026-32040 since 03/10/2026. The exploitation is known to be easy. The attack needs to be approached locally. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1059.007.

Upgrading to version 2026.2.23 eliminates this vulnerability. Applying a patch 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.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

• Artificial Intelligence Software

Name

• OpenClaw

Version

• 2026.2.0
• 2026.2.1
• 2026.2.2
• 2026.2.3
• 2026.2.4
• 2026.2.5
• 2026.2.6
• 2026.2.7
• 2026.2.8
• 2026.2.9
• 2026.2.10
• 2026.2.11
• 2026.2.12
• 2026.2.13
• 2026.2.14
• 2026.2.15
• 2026.2.16
• 2026.2.17
• 2026.2.18
• 2026.2.19
• 2026.2.20
• 2026.2.21
• 2026.2.22

Website

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

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Discussion