nyariv sandboxjs 0.8.23 Prototype Pollution Sandbox Escape DoS
A prototype pollution vulnerability exists in @nyariv/sandboxjs versions <= 0.8.23, allowing attackers to inject arbitrary properties into Object.prototype via crafted JavaScript code. This can result in a denial-of-service (DoS) condition or, under certain conditions, escape the sandboxed environment intended to restrict code execution. The vulnerability stems from insufficient prototype access checks in the sandbox’s executor logic, particularly in the handling of JavaScript function objects returned.
CVE-2025-34146
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2025-34146
sandboxjs
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "nyariv",
"modules": [
"dist/node/executor.js",
"dist/node/parser.js"
],
"product": "sandboxjs",
"versions": [
{
"status": "affected",
"version": "0",
"versionType": "semver",
"lessThanOrEqual": "0.8.23"
}
],
"packageURL": "pkg:npm/%40nyariv/sandboxjs",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2025-34146
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #12628 · Revision 1
- Added to Heist Feed
- Publisher date