| Component | OpenClaw |
| Severity | medium (CVSS 4.6) |
| CVSS vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
| Published (NVD) | 2026-03-19 |
| Last modified | 2026-06-17 |
| Affected versions | openclaw < 2026.2.23 |
| Fixed in | 2026.2.23 |
| Weakness | CWE-79 |
| CISA KEV | not listed |
NVD 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.
What to do
- Upgrade OpenClaw to
2026.2.23or later. - Do not expose the component's API or UI to the internet without authentication in front of it.
Sources
- NVD: CVE-2026-32040
- https://github.com/openclaw/openclaw/security/advisories/GHSA-2ww6-868g-2c56
- https://www.vulncheck.com/advisories/openclaw-html-injection-via-unvalidated-image-mime-type-in-data-url-interpolation
- https://github.com/openclaw/openclaw/pull/24140
Read more
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