Description
SandboxJS is a JavaScript sandboxing library. Prior to 0.8.27, SanboxJS does not properly restrict __lookupGetter__ which can be used to obtain prototypes, which can be used for escaping the sandbox / remote code execution. This vulnerability is fixed in 0.8.27.
References (3)
Scores
CVSS v3
10.0
EPSS
0.0022
EPSS Percentile
44.5%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
total
Details
CWE
CWE-1321
CWE-94
Status
published
Products (2)
nyariv/sandboxjs
< 0.8.27
nyariv/sandboxjs
0 - 0.8.27npm
Published
Feb 02, 2026
Tracked Since
Feb 18, 2026