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VULNERABILITIES

CVE-2026-107295 Details

Description

Pydantic AI is a Python agent framework for building applications and workflows with Generative AI. From 1.34.0 until 1.107.4 and 2.28.0, the Agent.to_web() and clai web development chat endpoint has missing request content-type validation. A website visited by a developer can submit a browser-compatible request to a loopback-hosted chat server, causing the served agent to run and execute tools with the privileges and credentials of the local process; client-relayed approval decisions also leave requires_approval=True tools exposed. Binding to localhost does not prevent a browser page from reaching the loopback address. This issue is fixed in versions 1.107.4 and 2.28.0.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:7.6 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:L

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://github.com/pydantic/pydantic-ai/commit/d2690201a1834005d382dbf5c47e0ed94ef8bf46 [email protected]Patch
https://github.com/pydantic/pydantic-ai/commit/dd2abbdfa029c9ad138e7cc0edd2eaeaf9ed69c0 [email protected]Patch
https://github.com/pydantic/pydantic-ai/pull/7382 [email protected]PatchIssue Tracking
https://github.com/pydantic/pydantic-ai/pull/7383 [email protected]PatchIssue Tracking
https://github.com/pydantic/pydantic-ai/releases/tag/v1.107.4 [email protected]PatchRelease Notes

see all 7 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-352Cross-Site Request Forgery (CSRF)[email protected]

Affected Products

ProductVersions
pydantic pydantic ai
>= 1.34.0, < 1.107.4
>= 2.0.0, < 2.28.0

CPE

  • cpe:2.3:a:pydantic:pydantic_ai:*:*:*:*:*:python:*:*
  • cpe:2.3:a:pydantic:pydantic_ai:*:-:*:*:*:python:*:*

Remediation

  • No remediation found in references.

Change History

3 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-107295
NVD Published Date:
Oct 8, 2026
NVD Last Modified:
Oct 13, 2026
Source:
[email protected]
CVE-2026-107295 Details - Not Deferred