CVE-2026-75062: CWE-95: Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection') in Google langfun
Description
CVE-2026-75062 is a critical vulnerability in Google langfun prior to version 0.1.2. It involves improper neutralization of directives in dynamically evaluated code within the default lf.query Python protocol. This flaw allows remote unauthenticated attackers to execute arbitrary Python code by crafting prompt inputs that cause the model to generate executable Python expressions evaluated without sandboxing.
CVSS v4.0
Score 9.2critical
Affected software
langfun
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability, classified as CWE-95 (Improper Neutralization of Directives in Dynamically Evaluated Code), affects Google langfun versions before 0.1.2. The issue arises because the default lf.query Python protocol evaluates generated Python expressions without sandboxing, enabling remote attackers to inject and execute arbitrary code via crafted prompt inputs. The CVSS 4.0 score is 9.2, indicating critical severity with network attack vector, low attack complexity, no privileges required, no user interaction, and high impacts on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation allows remote unauthenticated attackers to execute arbitrary Python code in the context of the host application, potentially leading to full compromise of the affected system's confidentiality, integrity, and availability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary mitigation has been documented at this time. Until a patch is available, avoid using vulnerable versions or disable the vulnerable lf.query Python protocol if possible.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Date Reserved
- 2026-08-17T15:35:22.670Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a8f0144acd9273b490b25a4
Added to database: 08/26/2026, 15:07:48 UTC
Last enriched: 09/09/2026, 17:37:37 UTC
Last updated: 10/09/2026, 06:48:19 UTC
Views: 73
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