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CVE-2026-107293 Details

Description

Pydantic AI is a Python agent framework for building applications and workflows with Generative AI. From 0.3.4 until 1.107.4 and 2.27.1, OpenTelemetry instrumentation configured with InstrumentationSettings(include_content=False) can export retry prompts outside tool calls in gen_ai.input.messages and pydantic_ai.all_messages. Agents using NativeOutput, PromptedOutput, or output validators on text output can therefore disclose validation feedback, including invalid model values quoted by that feedback, to readers of the telemetry backend. Tool-call retries and deployments that do not use include_content=False are not affected by this specific path. This issue is fixed in versions 1.107.4 and 2.27.1.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:5.3 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/pydantic/pydantic-ai/commit/fe9dbed7b7ccf7e7128b5786886e4441f6f5594f	[email protected]	Patch
https://github.com/pydantic/pydantic-ai/pull/7357	[email protected]	PatchVendor Advisory
https://github.com/pydantic/pydantic-ai/releases/tag/v2.27.1	[email protected]	PatchRelease NotesVendor Advisory
https://github.com/pydantic/pydantic-ai/security/advisories/GHSA-3gh4-cghq-f8v4	[email protected]	MitigationVendor Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-212	Improper Removal of Sensitive Information Before Storage or Transfer	[email protected]
CWE-532	Insertion of Sensitive Information into Log File	[email protected]

Affected Products

Product	Versions
pydantic pydantic ai	>= 0.3.4, < 1.107.4 >= 2.0.0, < 2.27.1
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

Date	Action	Recorded By
Oct 13, 2026	Initial Analysis	[email protected]
Oct 8, 2026	CVE Modified	CISA-ADP
Oct 8, 2026	New CVE Received	[email protected]