10

CVE-2026-43898

Exploit

SandboxJS: Sandbox escape via Function.caller leakage of internal call op

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Nyariv ≫ Sandboxjs SwPlatformnode.js Version < 0.9.6
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.47% 0.37
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
security-advisories@github.com 10 3.9 6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CWE-94 Improper Control of Generation of Code ('Code Injection')

The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.

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