Medium severity · published Mar 19, 2026
CVE-2026-32040
OpenClaw < 2026.2.23 - HTML Injection via Unvalidated Image MIME Type in Data-URL Interpolation
6.1
CVSS
0.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 4% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OP
OpenClaw · OpenClaw
before 2026.2.23 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-32040
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-32040
Issue Tracking
https://github.com/openclaw/openclaw/pull/24140
Exploit
https://github.com/openclaw/openclaw/security/advisories/GHSA-2ww6-868g-2c56
Third Party Advisory
https://www.vulncheck.com/advisories/openclaw-html-injection-via-unvalidated-image-mime-type-in-data-url-interpolation
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