CVE-2026-107293

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.

• CWE-212
• CWE-532

• https://github.com/pydantic/pydantic-ai/commit/fe9dbed7b7ccf7e7128b5786886e4441f6f5594f
• https://github.com/pydantic/pydantic-ai/pull/7357
• https://github.com/pydantic/pydantic-ai/releases/tag/v2.27.1
• https://github.com/pydantic/pydantic-ai/security/advisories/GHSA-3gh4-cghq-f8v4

Published

Oct 8, 2026

Last Modified

Oct 8, 2026

Status

Awaiting Analysis

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2026-107288Pydantic AI is a Python agent framework for building applica…3.7
• CVE-2026-107289Pydantic AI is a Python agent framework for building applica…6.8
• CVE-2026-10729An HTML injection vulnerability in the notification email fo…1.2
• CVE-2026-107290Pydantic AI is a Python agent framework for building applica…6.5
• CVE-2026-107291Pydantic AI is a Python agent framework for building applica…2.3
• CVE-2026-107292Pydantic AI is a Python agent framework for building applica…6.4
• CVE-2026-107294Pydantic AI is a Python agent framework for building applica…6.5
• CVE-2026-107295Pydantic AI is a Python agent framework for building applica…7.6
• CVE-2026-107296msgpack5 is a msgpack v5 implementation for node.js and the …3.7
• CVE-2026-107297msgpack5 is a msgpack v5 implementation for node.js and the …5.9
• CVE-2026-107298msgpack5 is a msgpack v5 implementation for node.js and the …5.3
• CVE-2026-107299msgpack5 is a msgpack v5 implementation for node.js and the …5.9