DNS Rebinding Affecting pydantic-ai-slim package, versions [1.34.0,1.107.5)[2.0.0b1,2.30.0)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published13 Oct 2026
- disclosed8 Oct 2026
- creditUnknown
Introduced: 8 Oct 2026
NewCVE-2026-107292 (opens in a new tab)How to fix?
Upgrade pydantic-ai-slim to version 1.107.5, 2.30.0 or higher.
Overview
pydantic-ai-slim is an Agent Framework / shim to use Pydantic with LLMs, slim package
Affected versions of this package are vulnerable to DNS Rebinding via insufficient Host header validation in the web UI component (Agent.to_web() and the clai web command). A malicious website can point a hostname it controls at a victim's local machine and issue cross-origin requests to the locally running UI, bypassing the same-origin policy through DNS rebinding. This allows an attacker to read responses and issue requests with the confidentiality, integrity, and availability impact reflected in the CVSS score.