SEPTEMBER 18, 2026
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Case File

CVE-2026-43898

CRITICAL · CVSS 10 EPSS 0.47% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2026-05-28 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 10.0. It affects Java. Public exploit code or proof-of-concept references have been detected in its references.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-43898
Severity
CRITICAL
CVSS
10
EPSS
0.47%
Java

Original NVD Description

SandboxJS is a JavaScript sandboxing library. Prior to 0.9.6, sandbox-defined functions expose Function.caller, allowing sandboxed code to recover the internal LispType.Call runtime callback. That callback can then be invoked with attacker-controlled fake context and obj values to extract blocked host statics, recover the real host Function constructor, and execute arbitrary host JavaScript. This vulnerability is fixed in 0.9.6.

Related CVEs

Other vulnerabilities affecting the same vendor(s)