CVE-2026-107291

Pydantic AI is a Python agent framework for building applications and workflows with Generative AI. From 0.3.4 until 1.107.6 and 2.44.0, OpenTelemetry instrumentation configured with InstrumentationSettings(include_content=False) can still export sensitive agent content through exception.message and exception.stacktrace events, error status descriptions, and model_request_parameters containing instructions or the prompted_output_template. The exposed data is available to readers of the configured telemetry backend and can include tool feedback, provider error bodies, runtime instructions, and structured-output templates even though message attributes are redacted. This issue does not grant new access to agent data, and deployments that do not use include_content=False are not affected by the setting bypass. This issue is fixed in versions 1.107.6 and 2.44.0.
Configurations

Configuration 1 (hide)

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

History

13 Oct 2026, 14:34

Type Values Removed Values Added
References () https://github.com/pydantic/pydantic-ai/commit/4e013c51a50659aba2adf7853bfb22bb77f6a518 - () https://github.com/pydantic/pydantic-ai/commit/4e013c51a50659aba2adf7853bfb22bb77f6a518 - Patch
References () https://github.com/pydantic/pydantic-ai/commit/6b14c74cb281f899a2ae4fae5327111e33f60771 - () https://github.com/pydantic/pydantic-ai/commit/6b14c74cb281f899a2ae4fae5327111e33f60771 - Patch
References () https://github.com/pydantic/pydantic-ai/commit/7ee27e38ab2e525ca60ff1a25d16413ff989fd79 - () https://github.com/pydantic/pydantic-ai/commit/7ee27e38ab2e525ca60ff1a25d16413ff989fd79 - Patch
References () https://github.com/pydantic/pydantic-ai/commit/963dec5f70d6f558997fc259356c0090cc5ea487 - () https://github.com/pydantic/pydantic-ai/commit/963dec5f70d6f558997fc259356c0090cc5ea487 - Patch
References () https://github.com/pydantic/pydantic-ai/commit/de4e61515327bd80a19cd8552001c30933e6acc3 - () https://github.com/pydantic/pydantic-ai/commit/de4e61515327bd80a19cd8552001c30933e6acc3 - Patch
References () https://github.com/pydantic/pydantic-ai/pull/8403 - () https://github.com/pydantic/pydantic-ai/pull/8403 - Patch, Vendor Advisory
References () https://github.com/pydantic/pydantic-ai/pull/8404 - () https://github.com/pydantic/pydantic-ai/pull/8404 - Patch, Vendor Advisory
References () https://github.com/pydantic/pydantic-ai/pull/8408 - () https://github.com/pydantic/pydantic-ai/pull/8408 - Patch, Vendor Advisory
References () https://github.com/pydantic/pydantic-ai/pull/8428 - () https://github.com/pydantic/pydantic-ai/pull/8428 - Patch, Vendor Advisory
References () https://github.com/pydantic/pydantic-ai/pull/8429 - () https://github.com/pydantic/pydantic-ai/pull/8429 - Exploit, Patch, Vendor Advisory
References () https://github.com/pydantic/pydantic-ai/releases/tag/v1.107.6 - () https://github.com/pydantic/pydantic-ai/releases/tag/v1.107.6 - Patch, Release Notes, Vendor Advisory
References () https://github.com/pydantic/pydantic-ai/releases/tag/v2.44.0 - () https://github.com/pydantic/pydantic-ai/releases/tag/v2.44.0 - Patch, Release Notes, Vendor Advisory
References () https://github.com/pydantic/pydantic-ai/security/advisories/GHSA-4x9p-g9wm-8q7f - () https://github.com/pydantic/pydantic-ai/security/advisories/GHSA-4x9p-g9wm-8q7f - Mitigation, Vendor Advisory
CVSS v2 : unknown
v3 : unknown
v2 : unknown
v3 : 4.3
CPE cpe:2.3:a:pydantic:pydantic_ai:*:-:*:*:*:python:*:*
cpe:2.3:a:pydantic:pydantic_ai:*:*:*:*:*:python:*:*
First Time Pydantic
Pydantic pydantic Ai

08 Oct 2026, 17:17

Type Values Removed Values Added
New CVE

Information

Published : 2026-10-08 17:17

Updated : 2026-10-13 14:34


NVD link : CVE-2026-107291

Mitre link : CVE-2026-107291

CVE.ORG link : CVE-2026-107291


JSON object : View

Products Affected

pydantic

  • pydantic_ai
CWE
CWE-212

Improper Removal of Sensitive Information Before Storage or Transfer

CWE-532

Insertion of Sensitive Information into Log File