Detections
Analytics
CVE-2026-107294
medium
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.
References
https://github.com/pydantic/pydantic-ai/security/advisories/GHSA-v2xh-2vp8-57h8
https://github.com/pydantic/pydantic-ai/releases/tag/v2.24.0
https://github.com/pydantic/pydantic-ai/releases/tag/v1.107.2
https://github.com/pydantic/pydantic-ai/pull/7308
https://github.com/pydantic/pydantic-ai/pull/7141
https://github.com/pydantic/pydantic-ai/commit/e3824a58c82864ed26afb2887619834a4eb86cc8
https://github.com/pydantic/pydantic-ai/commit/7a64d049c3f5271a975cd1d64b2fa876d83ede1d