๐Ÿ›ก๏ธ CVE-2026-25586
๐Ÿ”ด CVSS 10.0 โ€” Critical โœ… No Known Exploit CWE-74 NVD
10.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

SandboxJS is a JavaScript sandboxing library. Prior to 0.8.29, a sandbox escape is possible by shadowing hasOwnProperty on a sandbox object, which disables prototype whitelist enforcement in the property-access path. This permits direct access to __proto__ and other blocked prototype properties, enabling host Object.prototype pollution and persistent cross-sandbox impact. This vulnerability is fixed in 0.8.29.

Details

Severity CRITICAL
CVSS Score 10.0
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CWE CWE-74
Public Exploit โœ… No
Source NVD
Published 2026-02-05
Updated 2026-06-02
Modified 2026-02-06

Affected Packages

Software From version Fixed in
@nyariv/sandboxjs โ€” โ€”
sandboxjs โ€” 0.8.29

Similar Threats

Patch Gap Protection

Running software with known vulnerabilities?

BotEraser can help reduce exposure by blocking IPs associated with exploit activity โ€” even before a patch is available.

Start Free โ†’

No credit card required  ยท  Results in minutes

ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.