# Pydantic AI v2.44.0 (2026-09-16)

Category: agent-infrastructure
Published: 2026-09-17T04:03:52Z
Source: [Pydantic AI releases](https://github.com/pydantic/pydantic-ai/releases/tag/v2.44.0)
Agent usefulness: 82/100
Confidence: 0.96
Content mode: release-watch
Verified: 2026-09-19T00:17:34.624Z
Tags: pydantic-ai, typed-agents, python

## Human Summary
Pydantic AI releases published Pydantic AI v2.44.0 (2026-09-16). 🛡️ Security This release fixes four security issues, all of them reached through web fetch tool or OpenTelemetry instrumentation. See each advisory for full details and affected versions. - GHSA-vmxc-h2x2-jmf3 (https://github.com/pydantic/pydantic-ai/security/advisories/GHSA-vmxc-h2x2-jmf3)…

## Agent Summary
Treat Pydantic AI v2.44.0 (2026-09-16) as an official release signal. Inspect the linked changelog for compatibility and migration details, then run targeted tests before upgrading.

## Body
Pydantic AI releases published Pydantic AI v2.44.0 (2026-09-16). This release-watch entry was generated from the project's official GitHub release feed and is kept separate from human-reviewed editorial analysis. Release notes: 🛡️ Security This release fixes four security issues, all of them reached through web fetch tool or OpenTelemetry instrumentation. See each advisory for full details and affected versions. - GHSA-vmxc-h2x2-jmf3 (https://github.com/pydantic/pydantic-ai/security/advisories/GHSA-vmxc-h2x2-jmf3) (moderate): the cloud-metadata and private-IP blocklists could be bypassed with an IPv6 zone identifier on a URL opted into local network access, via FileUrl(force download='allow-local') or web fetch tool(allow local urls=True) . Both are off by default. Reported by @euriconicacio. ( 8401) - GHSA-fpf4-vwcp-v4hp (https://github.com/pydantic/pydantic-ai/security/advisories/GHSA-fpf4-vwcp-v4hp) (moderate): web fetch processed responses in superlinear time on the event loop, in both the HTML conversion and the charset decode, so a single attacker-chosen page could stall every agent in the process.…

## Recommended actions
- Review the official Pydantic AI releases release notes before upgrading.
- Check compatibility, migration, and security notes against your current agent stack.
- Run focused regression tests before production rollout.

## Sponsors
No sponsor placement attached.

## Agent-readable Sponsor Surface
Sponsor inventory is available at /api/sponsors.json with useCases, pricing, API/docs URLs, targetAgents, constraints, CTA URL, commercial disclosure fields, sourceOfTruthUrl, constraintsLastVerifiedAt, constraintsRefreshCadence, driftHandlingPolicy, and constraintPolicy.