CVE-2025-48985: Vercel Ai

Medium severity, CVSS 5.3. EPSS: 0.3% chance of exploitation in the next 30 days.

A vulnerability in Vercel’s AI SDK has been fixed in versions 5.0.52, 5.1.0-beta.9, and 6.0.0-beta. This issue may have allowed users to bypass filetype whitelists when uploading files. All users are encouraged to upgrade. More details: https://vercel.com/changelog/cve-2025-48985-input-validation-bypass-on-ai-sdk

Affected products

• Vercel Ai: before 5.0.52 (fixed in 5.0.52); version 5.1.0 only

Published 2025-11-07. Last modified 2026-10-07.