CVE-2026-32040 json
OpenClaw < 2026.2.23 - HTML Injection via Unvalidated Image MIME Type in Data-URL Interpolation
published 2026-03-03 8 mo ago modified 2026-11-08 18 h ago also EUVD-2026-13328 , GHSA-2ww6-868g-2c56
- cvss
- 4.6
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 4%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- npm openclaw 2026.2.23
- OpenClaw OpenClaw 2026.2.23
- github.com/openclaw/openclaw@f3adf14 commit
- github.com/openclaw/openclaw#24140 pull request
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 7 mo ago
Exploit prediction
0.16% chance of exploitation in the next 30 days, higher than 4% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/openclaw/openclaw/security/advisories/GHSA-2ww6-868g-2c56 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 2.4 | CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N |
| CNA | 3.1 | 4.6 | CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
| GitHub | 3.1 | 4.6 | CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
| CNA | 4.0 | 2.4 | CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
| NVD | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | openclaw | <2026.2.23 |
2026.2.23 |
Affected products
- OpenClaw OpenClaw
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/openclaw/openclaw/pull/24140
issue-tracking, patch, web
-
github.com
/openclaw/openclaw/commit/f3adf142c195000cbde31200626a1d8c8b716df9
web
-
github.com
/openclaw/openclaw/security/advisories/GHSA-2ww6-868g-2c56
vendor-advisory, web, exploit
-
vulncheck.com
/advisories/openclaw-html-injection-via-unvalidated-image-mime-type-in-data-url-interpolation
third-party-advisory, web
-
nvd.nist.gov
/vuln/detail/CVE-2026-32040
advisory
-
github.com
/openclaw/openclaw
package
Sources
- CVE List CVE-2026-32040
- GitHub Advisory GHSA-2ww6-868g-2c56
- NVD CVE-2026-32040
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.