CVE-2026-32723

MEDIUM EPSS 4.4%
Published Mar 18, 20263mo ago · Modified Mar 19, 20263mo ago
4.8 CVSS 4.0
Medium
Find Similar
Published Mar 18, 2026 3mo ago
Last Modified Mar 19, 2026 3mo ago

Description

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 Details

Base Score
4.8
Exploitability
—
Impact
—
Vector string
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/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 Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
4.4% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 1

CWE-362

Affected Products 1

VendorProductVersionRange
nyarivsandboxjs* <0.8.35

References 2

  • github.com https://github.com/nyariv/SandboxJS/commit/cc8f20b4928afed5478d5ad3d1737ef2dcfaac29
    Patch
  • github.com https://github.com/nyariv/SandboxJS/security/advisories/GHSA-7p5m-xrh7-769r
    ExploitVendor Advisory

Remediation

  • github.com https://github.com/nyariv/SandboxJS/commit/cc8f20b4928afed5478d5ad3d1737ef2dcfaac29
    Patch