CVE-2026-40112 (GCVE-0-2026-40112)
Vulnerability from cvelistv5
Published
2026-04-09 21:16
Modified
2026-04-14 14:43
CWE
  • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Summary
PraisonAI is a multi-agent teams system. Prior to 4.5.128, the Flask API endpoint in src/praisonai/api.py renders agent output as HTML without effective sanitization. The _sanitize_html function relies on the nh3 library, which is not listed as a required or optional dependency in pyproject.toml. When nh3 is absent (the default installation), the sanitizer is a no-op that returns HTML unchanged. An attacker who can influence agent input (via RAG data poisoning, web scraping results, or prompt injection) can inject arbitrary JavaScript that executes in the browser of anyone viewing the API output. This vulnerability is fixed in 4.5.128.
Impacted products
Vendor Product Version
MervinPraison PraisonAI Version: < 4.5.128
Create a notification for this product.
Show details on NVD website


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