Bug 2437781 (CVE-2026-25580)

Summary: CVE-2026-25580 Pydantic AI: Pydantic AI: Information disclosure via Server-Side Request Forgery (SSRF) through malicious URLs in message history.
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: bbrownin
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in Pydantic AI. This Server-Side Request Forgery (SSRF) vulnerability allows a remote attacker to include malicious URLs within untrusted message history. When processed by the application, these URLs can force the server to make unauthorized HTTP requests to internal network resources. This could lead to the disclosure of sensitive internal information or access to cloud credentials.
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Description OSIDB Bzimport 2026-02-09 11:05:54 UTC
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.