CVE-2026-107294

Description

Pydantic AI is a Python agent framework for building applications and workflows with Generative AI. From 1.77.0 until 1.107.2 and 2.24.0, web_fetch_tool, the WebFetch local fallback, and remote FileUrl media downloads buffer the complete HTTP response body before enforcing content-size controls. An attacker-influenced URL can stream an arbitrarily large response that exhausts process memory and crashes the worker; affected media types include ImageUrl, DocumentUrl, VideoUrl, and AudioUrl. SSRF protections remain effective, and the impact is limited to availability. This issue is fixed in versions 1.107.2 and 2.24.0.

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Produits concernés

• pydantic-ai
• pydantic-ai-slim
• Pydantic pydantic ai

Scores CVSS

Faiblesses (CWE)

• CWE-400

Références

• https://github.com/pydantic/pydantic-ai/commit/7a64d049c3f5271a975cd1d64b2fa876d83ede1d Patch
• https://github.com/pydantic/pydantic-ai/commit/e3824a58c82864ed26afb2887619834a4eb86cc8 Patch
• https://github.com/pydantic/pydantic-ai/pull/7141 PatchIssue Tracking
• https://github.com/pydantic/pydantic-ai/pull/7308 PatchIssue Tracking
• https://github.com/pydantic/pydantic-ai/releases/tag/v1.107.2 PatchRelease Notes
• https://github.com/pydantic/pydantic-ai/releases/tag/v2.24.0 PatchRelease NotesVendor Advisory
• https://github.com/pydantic/pydantic-ai/security/advisories/GHSA-v2xh-2vp8-57h8 Vendor Advisory

Ailleurs

• NVD
• CVE.org
• CIRCL Vulnerability-Lookup
• CERT-FR
• GitHub Advisories