Server-side Request Forgery (SSRF) Affecting pydantic-ai-slim package, versions [1.56.0,1.102.0)[2.0.0b1,2.0.0b3)
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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- published17 Jun 2026
- disclosed17 Jun 2026
- creditAvraham Shemesh
Introduced: 17 Jun 2026
CVE-2026-48782 (opens in a new tab)How to fix?
Upgrade pydantic-ai-slim to version 1.102.0, 2.0.0b3 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 Server-side Request Forgery (SSRF) due to the blocklist bypass via additional IPv6 transition forms when force_download='allow-local' is enabled. An attacker can access sensitive cloud IAM short-term credentials by bypassing the cloud-metadata blocklist using IPv6 transition forms such as IPv4-compatible, SIIT/IVI, and local NAT64 IPv6 addresses. This is only exploitable if the application is running on a network that routes the affected IPv6 transition forms, such as NAT64-configured networks or networks with an ISATAP tunnel.
Note:
This issue is due to incomplete fix for CVE-2026-46678.