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CVE-2026-34211
Published: Apr 6, 2026
Modified: Apr 7, 2026
PUBLISHED
Description
SandboxJS is a JavaScript sandboxing library. Prior to 0.8.36, the @nyariv/sandboxjs parser contains unbounded recursion in the restOfExp function and the lispify/lispifyExpr call chain. An attacker can crash any Node.js process that parses untrusted input by supplying deeply nested expressions (e.g., ~2000 nested parentheses), causing a RangeError: Maximum call stack size exceeded that terminates the process. This vulnerability is fixed in 0.8.36.
| Vendor | Product | Versions |
|---|---|---|
nyariv | SandboxJS | affected < 0.8.36 |
Weaknesses (CWE)
References
https://github.com/nyariv/SandboxJS/security/advisories/GHSA-8pfc-jjgw-6g26
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