Remote Code Execution in Univer

Publication date: 2026-09-21

Last updated on: 2026-09-21

Assigner: MITRE

Description

A remote code execution (RCE) vulnerability in the UniscriptExecutionService.execute() function (/services/script-execution.service.ts) of Univer v1.0.0-alpha.2 allows attackers to execute arbitrary code via a crafted payload.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-09-21

Last Modified

2026-09-21

Generated

2026-09-22

AI Q&A

2026-09-22

EPSS Evaluated

N/A

NVD

CVE-2026-88404

Affected Vendors & Products

Vendor	Product	Version / Range
univer	univer	1.0.0-alpha.2

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-UNKNOWN

Attack-Flow Graph

Executive Summary

This is a remote code execution (RCE) vulnerability in Univer v1.0.0-alpha.2. It exists in the UniscriptExecutionService.execute() function located at /services/script-execution.service.ts. Attackers can exploit this by sending a specially crafted payload to execute arbitrary code on the affected system.

Impact Analysis

This vulnerability allows attackers to run malicious code on your system remotely. This could lead to unauthorized access, data theft, system damage, or further compromise of your environment. If you use Univer v1.0.0-alpha.2, your system may be at risk of these attacks.

Mitigation Strategies

Immediately update Univer to the latest patched version to address the RCE vulnerability in the script execution service. If an update is unavailable, disable the UniscriptExecutionService.execute() function or restrict network access to the service until a fix is applied.

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