CVE-2026-25580 HIGH

CVE-2026-25580: Pydantic AI Affected by Server-Side Request Forgery (SSRF) in URL Download Handling

Vendor Pydantic
Product pydantic-ai
Weakness CWE-918 · SSRF
Published February 6, 2026
Last update June 30, 2026
View on NVD All CVEs

CVSS base score

8.6/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

What the vulnerability does

01Description

Pydantic AI is a Python agent framework for building applications and workflows with Generative AI. From 0.0.26 to before 1.56.0, aServer-Side Request Forgery (SSRF) vulnerability exists in Pydantic AI's URL download functionality. When applications accept message history from untrusted sources, attackers can include malicious URLs that cause the server to make HTTP requests to internal network resources, potentially accessing internal services or cloud credentials. This vulnerability only affects applications that accept message history from external users. This vulnerability is fixed in 1.56.0.

Key dates

02Disclosure timeline

February 6, 2026 CVE published
June 30, 2026 Record updated