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6.5 Moyenne

CVE-2026-107287 Pydantic AI is a Python agent framework for building applications and workflows with Generative AI

Description

Pydantic AI is a Python agent framework for building applications and workflows with Generative AI. From 1.77.0 until 1.107.7 and 2.52.0, the local web_fetch_tool and the WebFetch local fallback can consume excessive CPU and memory during HTML-to-Markdown conversion of attacker-controlled HTML containing deeply nested block elements. Conversion repeatedly reprocesses accumulated text and can greatly expand intermediate output before the returned-content limit is applied, allowing a model-directed fetch to delay other work in the process. Provider-native web fetching is not affected. This issue is fixed in versions 1.107.7 and 2.52.0.

Produits et versions touchés

Produit Versions touchées Corrigé en
pydantic-ai 2.0 2.0.0b1 → < 2.52.0 2.52.0
pydantic-ai 1.77 1.77.0 → < 1.107.7 1.107.7
pydantic-ai-slim 2.0 2.0.0b1 → < 2.52.0 2.52.0
pydantic-ai-slim 1.77 1.77.0 → < 1.107.7 1.107.7

Références

Chronologie

  1. Publiée
  2. Dernière modification

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