{"id":"CVE-2026-25587","summary":"SandboxJS has a Sandbox Escape","details":"SandboxJS is a JavaScript sandboxing library. Prior to 0.8.29, as Map is in SAFE_PROTOYPES, it's prototype can be obtained via Map.prototype. By overwriting Map.prototype.has the sandbox can be escaped. This vulnerability is fixed in 0.8.29.","aliases":["GHSA-66h4-qj4x-38xp"],"modified":"2026-04-10T05:40:39.145428Z","published":"2026-02-06T19:51:56.208Z","database_specific":{"cna_assigner":"GitHub_M","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/25xxx/CVE-2026-25587.json","cwe_ids":["CWE-94"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/25xxx/CVE-2026-25587.json"},{"type":"ADVISORY","url":"https://github.com/nyariv/SandboxJS/security/advisories/GHSA-66h4-qj4x-38xp"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-25587"},{"type":"FIX","url":"https://github.com/nyariv/SandboxJS/commit/67cb186c41c78c51464f70405504e8ef0a6e43c3"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/nyariv/sandboxjs","events":[{"introduced":"0"},{"fixed":"67cb186c41c78c51464f70405504e8ef0a6e43c3"}]}],"versions":["0.5.0","0.5.2","0.5.3","0.6.0","0.6.1","0.6.2","0.7.0","0.7.1","0.8.0","0.8.10","0.8.11","0.8.12","0.8.14","0.8.15","0.8.15.1","0.8.16","0.8.17","0.8.18","0.8.19","0.8.2","0.8.20","0.8.21","0.8.22","0.8.23","0.8.23-1","0.8.23.2","0.8.23.3","0.8.24","0.8.24-1","0.8.24-2","0.8.28","0.8.3","0.8.4","0.8.5","0.8.6","0.8.7","0.8.8","0.8.9"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-25587.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H"}]}