CVE-2026-32723

SandboxJS is a JavaScript sandboxing library. Prior to 0.8.35, SandboxJS timers have an execution-quota bypass. A global tick state (`currentTicks.current`) is shared between sandboxes. Timer string handlers are compiled at execution time using that global tick state rather than the scheduling sandbox's tick object. In multi-tenant / concurrent sandbox scenarios, another sandbox can overwrite `currentTicks.current` between scheduling and execution, causing the timer callback to run under a different sandbox's tick budget and bypass the original sandbox's execution quota/watchdog. Version 0.8.35 fixes this issue.

CVSS v3 4.7 MEDIUM

4.7^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.0 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/nyariv/SandboxJS/commit/cc8f20b4928afed5478d5ad3d1737ef2dcfaac29	Patch
https://github.com/nyariv/SandboxJS/security/advisories/GHSA-7p5m-xrh7-769r	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:nyariv:sandboxjs:*:*:*:*:*:node.js:*:*

History

19 Mar 2026, 19:20

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 4.7
References	~~() https://github.com/nyariv/SandboxJS/commit/cc8f20b4928afed5478d5ad3d1737ef2dcfaac29 -~~	() https://github.com/nyariv/SandboxJS/commit/cc8f20b4928afed5478d5ad3d1737ef2dcfaac29 - Patch
References	~~() https://github.com/nyariv/SandboxJS/security/advisories/GHSA-7p5m-xrh7-769r -~~	() https://github.com/nyariv/SandboxJS/security/advisories/GHSA-7p5m-xrh7-769r - Exploit, Vendor Advisory
CPE		cpe:2.3:a:nyariv:sandboxjs::::::node.js::*
First Time		Nyariv sandboxjs Nyariv

18 Mar 2026, 22:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-03-18 22:16

Updated : 2026-03-19 19:20

NVD link : CVE-2026-32723

Mitre link : CVE-2026-32723

CVE.ORG link : CVE-2026-32723

JSON object : View

Products Affected

nyariv

sandboxjs

CWE

CWE-362

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

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