{"cve":"CVE-2026-26954","nvd":{"published":"2026-03-13T19:54:31.143","modified":"2026-06-17T10:26:26.647","status":"Analyzed","description":"SandboxJS is a JavaScript sandboxing library. Prior to 0.8.34, it is possible to obtain arrays containing Function, which allows escaping the sandbox. Given an array containing Function, and Object.fromEntries, it is possible to construct {[p]: Function} where p is any constructible property. This vulnerability is fixed in 0.8.34.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","score":10.0},"cwes":["CWE-94"],"references":["https://github.com/nyariv/SandboxJS/security/advisories/GHSA-6r9f-759j-hjgv","https://github.com/nyariv/SandboxJS/security/advisories/GHSA-6r9f-759j-hjgv"],"products":["nyariv:sandboxjs"],"source":"nvd","synced_at":"2026-10-19T22:25:53.701907451+00:00"},"epss":{"cve":"CVE-2026-26954","score":0.00569,"percentile":0.47115,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-6r9f-759j-hjgv","url":"https://osv.dev/vulnerability/GHSA-6r9f-759j-hjgv","summary":"SandboxJS affected by a Sandbox Escape","modified":"2026-03-16T17:16:38.369045Z","packages":[{"ecosystem":"npm","name":"@nyariv/sandboxjs","purl":"pkg:npm/%40nyariv/sandboxjs","ranges":["<0.8.34"],"fixed":["0.8.34"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}