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CVE-2026-18632— langgenius dify Jinja2 jinja2_transformer.py jinja2.Template special elements used in a template engine

Quick assessment

Affected
langgenius dify
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.

LangGenius dify是LangGenius公司开源的一个LLM应用程序开发平台。 LangGenius dify 1.14.2及之前版本存在安全漏洞，该漏洞源于api/core/helper/code_executor/jinja2/jinja2_transformer.py文件中jinja2.Template函数对模板引擎中使用的特殊元素中和不当，可能导致远程代码注入。

CVSS 6.3 · Medium EPSS 0.39% · P31

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 3

VendorProduct Version RangeStatus
langgenius dify 1.14.0 affected
1.14.1 affected
1.14.2 affected
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I. Basic Information for CVE-2026-18632

Vulnerability Information
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Vulnerability Title
langgenius dify Jinja2 jinja2_transformer.py jinja2.Template special elements used in a template engine
Source: CVE Program / CVE List V5
Vulnerability Description
A security flaw has been discovered in langgenius dify up to 1.14.2. This issue affects the function jinja2.Template of the file api/core/helper/code_executor/jinja2/jinja2_transformer.py of the component Jinja2 Handler. The manipulation results in improper neutralization of special elements used in a template engine. The attack may be launched remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
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
CWE-1336
Source: CVE Program / CVE List V5
Vulnerability Title
LangGenius dify 代码注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
LangGenius dify是LangGenius公司开源的一个LLM应用程序开发平台。 LangGenius dify 1.14.2及之前版本存在安全漏洞，该漏洞源于api/core/helper/code_executor/jinja2/jinja2_transformer.py文件中jinja2.Template函数对模板引擎中使用的特殊元素中和不当，可能导致远程代码注入。
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
langgenius dify 1.14.0 cpe:2.3:a:langgenius:dify:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-18632

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III. Intelligence Information for CVE-2026-18632

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Other References for CVE-2026-18632 (1)

IV. Related Vulnerabilities

Same product: dify
Same vendor: langgenius
Same weakness: CWE-1336

V. Comments for CVE-2026-18632

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