Is CVE-2026-5752 actively exploited?

No active exploitation of CVE-2026-5752 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-5752 be exploited remotely?

No. CVE-2026-5752 requires local access to exploit.

What is the CVSS score of CVE-2026-5752?

CVE-2026-5752 has a CVSS score of 9.3 (CRITICAL).

HOME VULNERABILITIESCVE-2026-5752

CRITICAL

CVE-2026-5752

Published: April 14, 2026· Updated: Apr 17, 2026

9.3

CVSS v3.1

EPSS:0.02%probability of exploitation in 30 daysPercentile:5.5th

Official Description

Sandbox Escape Vulnerability in Terrarium allows arbitrary code execution with root privileges on a host process via JavaScript prototype chain traversal.

NVD Source

Technical Analysis

CVE-2026-5752 requires local access, meaning attackers must already have a foothold on the target system.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.3.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges Req.None

User InteractionNone

ScopeChanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time

Exploit-DB

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GitHub PoC Search

Community PoC repositories

Rapid7 / Metasploit

Metasploit module search

PacketStorm

Security advisories & exploits

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News & Research Mentioning CVE-2026-5752

Cohere AI Terrarium Sandbox Flaw Enables Root Code Execution, Container Escape

The Hacker News· Apr 22, 2026

A critical security vulnerability has been disclosed in a Python-based sandbox called Terrarium that could result in arbitrary code execution. The vulnerability, tracked as CVE-2026-5752, is rated 9.3 on the CVSS scoring system. "Sandbox escape vulnerability in Terrarium allows arbitrary code execution with root privileges on a host process via JavaScript prototype chain traversal," according to [xlite_meta score:50 src:The Hacker News xlite_fp:5c8282e4dfe20410c07eb8f63a979ea63dc2188d8cb9539d3e807ea027e5608c]