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I. Basic Information for CVE-2026-5559
Vulnerability Information

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Vulnerability Title
AntaresMugisho PyBlade AST Validation sandbox.py _is_safe_ast special elements used in a template engine
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability has been found in AntaresMugisho PyBlade 0.1.8-alpha/0.1.9-alpha. The affected element is the function _is_safe_ast of the file sandbox.py of the component AST Validation. Such manipulation leads to improper neutralization of special elements used in a template engine. The attack may be performed from remote. The exploit has been disclosed to the public and may be used. The project was informed of the problem early through an issue report but has not responded yet.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
CWE-1336
Source: NVD (National Vulnerability Database)
Vulnerability Title
PyBlade 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
PyBlade是Antares个人开发者的一个轻量高效的Python模板引擎,支持组件化开发。 PyBlade 0.1.8-alpha和0.1.9-alpha版本存在安全漏洞,该漏洞源于文件sandbox.py中_is_safe_ast函数对模板引擎特殊元素中和不当。
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
VendorProductAffected VersionsCPESubscribe
AntaresMugishoPyBlade 0.1.8-alpha -
II. Public POCs for CVE-2026-5559
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III. Intelligence Information for CVE-2026-5559
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