CVE-2026-43898

Description

SandboxJS has a sandbox escape via Function.caller leakage of internal call op

Overview

State

—

Assigner (CNA)

—

CVSS severity

critical

CVSS score

—

CVSS vector

AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Effective score

no score available from CNA, NVD, or AI yet

CWE(s)

—

Reserved

—

Published

—

Last updated

—

Source

https://www.tenable.com/cve/CVE-2026-43898

Linked Threat

CVE-2026-43898 — CVE-2026-43898

Used only when a CVE has no official CVSS from its CNA or NVD. An LLM estimates the v3.1 base score from the description; a HIGH/CRITICAL estimate promotes the CVE to a Threat.

No AI estimate yet — it runs automatically once NVD has been checked, or click the button above.

European Union Vulnerability Database ENISA EUVD

ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.

EUVD ID

EUVD-2026-32968

EUVD enrichment is queued; refresh the page in a few seconds.

Vendor references (0)

References embedded in the original CVE record by the assigning CNA.

None in the CVE record.

Web references (5)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

• https://github.com/nyariv/SandboxJS/commit/826865251232611ec94078bab5a18ec875dad4a5 tenable:github.com
• https://github.com/nyariv/SandboxJS/security/advisories/GHSA-g8f2-4f4f-5jqw tenable:github.com
• https://www.first.org/epss/ tenable:www.first.org
• https://nvd.nist.gov/vuln/detail/CVE-2026-43898 tenable:nvd.nist.gov
• https://www.cve.org/CVERecord?id=CVE-2026-43898 tenable:www.cve.org

Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.

• Microsoft and Adobe Patch Tuesday, April 2026 Security Update Review
  web:blog.qualys.com

  With Qualys Policy Audit's out-of-the-box mitigation or Compensatory Controls, which reduce the risk of a vulnerability being exploited because the remediation ( fix / patch ) cannot be done immediately, these security controls are not recommended by any industry standards, such as CIS and DISA-STIG.

  2026-05-26 02:50 UTC
• Microsoft addresses 137 vulnerabilities in May's Patch Tuesday ...
  web:cyberscoop.com

  Threats Microsoft addresses 137 vulnerabilities in May's Patch Tuesday, including 13 rated critical The high volume of vulnerabilities reflects a growing trend researchers have been anticipating as artificial intelligence models are deployed to find previously uncovered defects in code.

  2026-05-26 02:50 UTC
• CVE‑2026‑42898: Remote Code Execution in Microsoft Dynamics 365 On ...
  web:integsec.com

  A technical appendix below provides detection, remediation , and best‑practice guidance for your security and IT teams. S1 — Background & History CVE‑2026‑42898 was publicly disclosed on May 12, 2026 , and is assigned to an improper control of code generation in Microsoft Dynamics 365 on‑premises.

  2026-05-26 02:50 UTC
• Security Update Guide - Microsoft
  web:msrc.microsoft.com

  The Microsoft Security Response Center (MSRC) investigates all reports of security vulnerabilities affecting Microsoft products and services, and provides the information here as part of the ongoing effort to help you manage security risks and help keep your systems protected.

  2026-05-26 02:50 UTC
• Nvd - Cve-2026-42898
  web:nvd.nist.gov

  An official website of the United States government Here's how you know

  2026-05-26 02:50 UTC
• April 2026 Patch Tuesday: Updates and Analysis | CrowdStrike
  web:www.crowdstrike.com

  Microsoft's April 2026 Patch Tuesday addresses 164 CVEs , featuring 8 Critical vulnerabilities, one exploited zero-day, and one disclosed zero-day.

  2026-05-26 02:50 UTC
• Grammarly: Free AI Writing Assistance
  web:www.grammarly.com

  Grammarly makes AI writing convenient. Work smarter with personalized AI guidance and text generation on any app or website.

  2026-05-26 02:50 UTC
• Oracle Critical Patch Update Advisory - April 2026
  web:www.oracle.com

  This Critical Patch Update contains 481 new security patches across the product families listed below. Please note that an MOS note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at April 2026 Critical Patch Update: Executive Summary and Analysis.

  2026-05-26 02:50 UTC
• Vulnerability Remediation vs. Mitigation: What are the Differences ...
  web:www.secure.com

  Learn the difference between vulnerability remediation and mitigation , and how a risk-based strategy can strengthen your security posture.

  2026-05-26 02:50 UTC
• Patch Tuesday May 2026: Security Updates & CVE Analysis
  web:zecurit.com

  Get the complete breakdown of Microsoft's May 2026 Patch Tuesday. We analyze the latest security updates and all critical CVEs .

  2026-05-26 02:50 UTC

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