CVEvulnerability
CVE-2026-107294
6.5 MEDIUM
Official page ↗
- Status
- Analyzed
- Published
- 2026-10-08
- Last modified
- 2026-10-13
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-400
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.
Affected configurations
• pydantic pydantic ai (>= 1.77.0 < 1.107.2)
• pydantic pydantic ai (>= 2.0.0 < 2.24.0)
Related
Weakness · CWE (1)
- CWE-400 Uncontrolled Resource Consumption weakness
References
- 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 Patch, Issue Tracking
- https://github.com/pydantic/pydantic-ai/pull/7308 Patch, Issue Tracking
- https://github.com/pydantic/pydantic-ai/releases/tag/v1.107.2 Patch, Release Notes
- https://github.com/pydantic/pydantic-ai/releases/tag/v2.24.0 Patch, Release Notes, Vendor Advisory
- https://github.com/pydantic/pydantic-ai/security/advisories/GHSA-v2xh-2vp8-57h8 Vendor Advisory