CVE-2026-43898

Description

SandboxJS is a JavaScript sandboxing library. Prior to 0.9.6, sandbox-defined functions expose Function.caller, allowing sandboxed code to recover the internal LispType.Call runtime callback. That callback can then be invoked with attacker-controlled fake context and obj values to extract blocked host statics, recover the real host Function constructor, and execute arbitrary host JavaScript. This vulnerability is fixed in 0.9.6.

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Produits concernés

• nyariv SandboxJS

Scores CVSS

Faiblesses (CWE)

• CWE-94

Références

• https://github.com/nyariv/SandboxJS/commit/826865251232611ec94078bab5a18ec875dad4a5 Patch
• https://github.com/nyariv/SandboxJS/security/advisories/GHSA-g8f2-4f4f-5jqw ExploitVendor Advisory
• https://github.com/nyariv/SandboxJS/security/advisories/GHSA-g8f2-4f4f-5jqw ExploitVendor Advisory

Ailleurs

• NVD
• CVE.org
• CIRCL Vulnerability-Lookup
• CERT-FR
• GitHub Advisories