CVE-2026-32040 OpenClaw < 2026.2.23 - HTML Injection via Unvalidated Image MIME Type in Data-URL Interpolation
Attackers can execute arbitrary JavaScript via malicious MIME types in image data-URLs when exported HTML is viewed, affecting OpenClaw users.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2026-32040?
CVE-2026-32040 is a low-severity cross-site scripting vulnerability in Openclaw Openclaw, published on 19 Mar 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
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.
Weakness: CWE-79
Which versions are affected by CVE-2026-32040?
2 open source packages ship an affected version, including openclaw. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
openclaw npm | All versions | 2026.2.23 |
openclaw npm | All versions | 2026.2.23 |
Products include Openclaw Openclaw.
How do I fix CVE-2026-32040?
Upgrade openclaw to 2026.2.23 or later.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-32040 being exploited?
There is no known exploitation of CVE-2026-32040 in the wild and no public exploit code.
Other vulnerabilities in Openclaw Openclaw
- CVE-2026-28363 Security feature bypass in OpenClaw
- CVE-2026-30741 Code injection in n/a
- CVE-2026-33579 OpenClaw < 2026.3.28 - Privilege Escalation via Missing Caller Scope Validation in Device Pair Approval
- CVE-2026-32922 OpenClaw < 2026.3.11 - Privilege Escalation via Unvalidated Scope in device.token.rotate
- CVE-2026-32978 OpenClaw < 2026.3.11 - Approval Bypass via Unrecognized Script Runners
Sources
Also known as GHSA-2ww6-868g-2c56, MINI-2j8q-63c3-fph7.