Improper Neutralization of Special Elements Used in a Template Engine Affecting pyspur package, versions [0,]
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-PYTHON-PYSPUR-10500877
- published26 Jun 2025
- disclosed23 Jun 2025
- creditArashimu
Introduced: 23 Jun 2025
NewCVE-2025-6518 (opens in a new tab)How to fix?
There is no fixed version for pyspur.
Overview
pyspur is a PySpur is a Graph UI for building AI Agents in Python
Affected versions of this package are vulnerable to Improper Neutralization of Special Elements Used in a Template Engine via the SingleLLMCallNode function. An attacker can execute unauthorized template code and potentially access or modify sensitive data by supplying specially crafted input to the user_message parameter.