CVE-2026-107291
mediumPydantic AI is a Python agent framework for building applications and workflows with Generative AI.
Vendor / product: Pydantic — pydantic ai
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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N Affected products
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
References
- https://github.com/pydantic/pydantic-ai/commit/4e013c51a50659aba2adf7853bfb22bb77f6a518 security-advisories@github.com
- https://github.com/pydantic/pydantic-ai/commit/6b14c74cb281f899a2ae4fae5327111e33f60771 security-advisories@github.com
- https://github.com/pydantic/pydantic-ai/commit/7ee27e38ab2e525ca60ff1a25d16413ff989fd79 security-advisories@github.com
- https://github.com/pydantic/pydantic-ai/commit/963dec5f70d6f558997fc259356c0090cc5ea487 security-advisories@github.com
- https://github.com/pydantic/pydantic-ai/commit/de4e61515327bd80a19cd8552001c30933e6acc3 security-advisories@github.com
- https://github.com/pydantic/pydantic-ai/pull/8403 security-advisories@github.com
- https://github.com/pydantic/pydantic-ai/pull/8404 security-advisories@github.com
- https://github.com/pydantic/pydantic-ai/pull/8408 security-advisories@github.com
- https://github.com/pydantic/pydantic-ai/pull/8428 security-advisories@github.com
- https://github.com/pydantic/pydantic-ai/pull/8429 security-advisories@github.com
- https://github.com/pydantic/pydantic-ai/releases/tag/v1.107.6 security-advisories@github.com
- https://github.com/pydantic/pydantic-ai/releases/tag/v2.44.0 security-advisories@github.com
- https://github.com/pydantic/pydantic-ai/security/advisories/GHSA-4x9p-g9wm-8q7f security-advisories@github.com