CVE-2026-93604
7.2, highPatriksimek vm2 Improper Access Control Vulnerability
- CVSS
- 7.2, high high CVSS v3.1
- EPSS, next 30 days
- 0.3% higher than 26.4% of scored CVEs
- Exploitation
- No public evidence
- Published
- 18 Sept 202629 days ago
Description
vm2 through 3.12.0 exposes Node.js's crypto.setFips() function to untrusted guest code when an embedder explicitly allowlists the crypto builtin for a NodeVM (require.builtin: ['crypto']). The builtin sanitizer (sanitizeCryptoModule in lib/builtin.js) replaces crypto.setEngine but leaves crypto.setFips callable, and the readonly wrapper used to expose the host module does not localize side effects of forwarded host functions. Guest code can therefore call crypto.setFips() to change the FIPS mode of the entire host process; the modified mode is subsequently observed by trusted host code (crypto.getFips() changed from 0 to 1 in the reported test), crossing the NodeVM isolation boundary. Fixed in vm2 3.12.1.
Details
- Vendor
- Patriksimek
- Product
- vm2
- Weakness
- CWE-284 (opens in a new tab)
- Status
- Deferred
- Updated
- 18 Sept 2026
- Assigner
- disclosure@vulncheck.com
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:L
References 2
Advisories 1
The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.
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Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 17 Oct 2026, not the live upstream state.