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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.

在 Google langfun 早于 0.1.2 的版本中，默认的 Python 协议中存在“动态评估代码中的指令未正确中和（Eval Injection）”漏洞。该漏洞允许远程未认证的攻击者通过精心构造的提示输入，诱导模型生成可执行的 Python 表达式；由于这些表达式在没有沙箱保护的情况下被直接评估，从而使得攻击者能够在宿主应用的上下文中执行任意 Python 代码。

CVSS 9.2 · Critical

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

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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