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pydantic-ai: SSRF blocklist bypass via IPv4-compatible, SIIT/IVI, and local NAT64 IPv6 addresses (incomplete fix of CVE-2026-46678)

🗓️ 26 Jun 2026 19:17:56Reported by GitHub Advisory DatabaseType 
github
 github
🔗 github.com👁 5 Views

Pydantic AI SSRF bypass via IPv6 transition forms to reach metadata; incomplete fix for CVE-2026-46678.

Related
Detection
Refs
Vulners
Node
pydantic-ai-slimRange2.0.0b12.0.0b3pip
OR
pydantic-aiRange2.0.0b12.0.0b3pip
OR
pydantic-aiRange1.56.01.102.0pip
OR
pydantic-ai-slimRange1.56.01.102.0pip

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26 Jun 2026 19:17Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.16.8
EPSS0.00332
SSVC
5