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PYSEC-2026-4280 Pydantic AI: Unbounded memory use when downloading remote content via web_fetch or FileUrl

🗓️ 15 Oct 2026 10:22:51Reported by GoogleType 
osv-pysec
 osv-pysec
🔗 osv.dev👁 1 Views

Unbounded memory use in Pydantic AI during remote content downloads via web_fetch or FileUrl.

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15 Oct 2026 14:55Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.16.5
EPSS0.00437
1