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CVE-2026-1977— isaacwasserman mcp-vegalite-server visualize_data eval code injection

Quick assessment

Affected
isaacwasserman mcp-vegalite-server
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Data Visualization MCP Server是Isaac Wasserman个人开发者的一个用于数据可视化的上下文协议服务器。 Data Visualization MCP Server存在代码注入漏洞，该漏洞源于对参数vegalite_specification的错误操作，可能导致代码注入。

CVSS 6.3 · Medium EPSS 0.27% · P18

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter
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I. Basic Information for CVE-2026-1977

Vulnerability Information
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Vulnerability Title
isaacwasserman mcp-vegalite-server visualize_data eval code injection
Source: CVE Program / CVE List V5
Vulnerability Description
A security vulnerability has been detected in isaacwasserman mcp-vegalite-server up to 16aefed598b8cd897b78e99b907f6e2984572c61. Affected by this vulnerability is the function eval of the component visualize_data. Such manipulation of the argument vegalite_specification leads to code injection. The attack may be performed from remote. The exploit has been disclosed publicly and may be used. This product utilizes a rolling release system for continuous delivery, and as such, version information for affected or updated releases is not disclosed. The project was informed of the problem early through an issue report but has not responded yet.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
对生成代码的控制不恰当(代码注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Data Visualization MCP Server 代码注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Data Visualization MCP Server是Isaac Wasserman个人开发者的一个用于数据可视化的上下文协议服务器。 Data Visualization MCP Server存在代码注入漏洞，该漏洞源于对参数vegalite_specification的错误操作，可能导致代码注入。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
isaacwasserman mcp-vegalite-server 16aefed598b8cd897b78e99b907f6e2984572c61 -

II. Public POCs for CVE-2026-1977

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III. Intelligence Information for CVE-2026-1977

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Other References for CVE-2026-1977 (1)

IV. Related Vulnerabilities

Same weakness: CWE-94

V. Comments for CVE-2026-1977

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