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CVE-2026-75062— Eval Injection in google/langfun via default lf.query protocol

Quick assessment

Affected
Google langfun
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.

Google Langfun是美国Google公司的一个以自然语言接口操作语言模型的编程库。 Google Langfun 0.1.2之前版本存在安全漏洞，该漏洞源于默认的lf.query Python协议中动态评估代码指令中和不当（Eval Injection），可能导致远程未认证攻击者通过特制提示输入在宿主应用环境中执行任意Python代码。

CVSS 9.2 · Critical EPSS 0.35% · P27

Affected Version Matrix 1

VendorProduct Version RangeStatus
Google langfun 0.0.1< 0.1.2 affected
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I. Basic Information for CVE-2026-75062

Vulnerability Information
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Vulnerability Title
Eval Injection in google/langfun via default lf.query protocol
Source: CVE Program / CVE List V5
Vulnerability Description
Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection') in the default lf.query Python protocol in Google langfun versions prior to 0.1.2 allows remote unauthenticated attackers to execute arbitrary Python code in the context of the host application via crafted prompt inputs that cause the model to generate executable Python expressions evaluated without a sandbox.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
动态执行代码中指令转义处理不恰当(Eval注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Google Langfun 代码注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Google Langfun是美国Google公司的一个以自然语言接口操作语言模型的编程库。 Google Langfun 0.1.2之前版本存在安全漏洞，该漏洞源于默认的lf.query Python协议中动态评估代码指令中和不当（Eval Injection），可能导致远程未认证攻击者通过特制提示输入在宿主应用环境中执行任意Python代码。
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
Google langfun 0.0.1 ~ 0.1.2 -

II. Public POCs for CVE-2026-75062

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III. Intelligence Information for CVE-2026-75062

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Other References for CVE-2026-75062 (1)

IV. Related Vulnerabilities

Same vendor: Google
Same weakness: CWE-95

V. Comments for CVE-2026-75062

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