HomeNyarivCVE-2026-34211

CVE-2026-34211

MEDIUM
6.9CVSS
Published: 2026-04-06
Updated: 2026-04-09
AI Analysis

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.

CVSS Metrics

Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
network
Complexity
low
Privileges
none
User Action
none
Confidentiality
undefined
Integrity
undefined
Availability
undefined
Weaknesses
CWE-674

Metadata

Primary Vendor
NYARIV
Published
4/6/2026
Last Modified
4/9/2026
Source
NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

nyariv : sandboxjs

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CVE-CVE-2026-34211 | MEDIUM Severity | CVEDatabase.com | CVEDatabase.com