CVE-2026-25586
- Source
- https://cve.org/CVERecord?id=CVE-2026-25586
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-25586.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-25586
- Aliases
- Published
- 2026-02-06T19:54:38.446Z
- Modified
- 2026-02-08T04:16:04.559089Z
- Severity
-
- 10.0 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H CVSS Calculator
- Summary
- SandboxJS has a Sandbox Escape via Prototype Whitelist Bypass and Host Prototype Pollution
- Details
-
SandboxJS is a JavaScript sandboxing library. Prior to 0.8.29, a sandbox escape is possible by shadowing hasOwnProperty on a sandbox object, which disables prototype whitelist enforcement in the property-access path. This permits direct access to proto and other blocked prototype properties, enabling host Object.prototype pollution and persistent cross-sandbox impact. This vulnerability is fixed in 0.8.29.
- Database specific
{ "cwe_ids": [ "CWE-74" ], "cna_assigner": "GitHub_M", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/25xxx/CVE-2026-25586.json" }- References
Affected packages
Git / github.com/nyariv/sandboxjs
Affected ranges
- Type
- GIT
- Repo
- https://github.com/nyariv/sandboxjs
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixed