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…

Description

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

Scores

EPSS (exploitation in 30 days)

0.28% · top 79% of all CVEs (6 Nov 2026)

CISA SSVC

Exploitation: none · Automatable: no · Technical impact: partial

The list uses the assigner's score when there is one, then CISA's, then NVD's: Low 3.7.

Weakness

• CWE-20 Improper Input Validation (opens in a new tab)All about CWE-20 and its CVEs

Affected products

• Vercel · AI SDK

  • affected 5.0.51 – ≤ 5.0.51
  • unaffected 6.0.0-beta.* – < 6.0.0-beta.*
  • affected 5.1.0-beta.8 – ≤ 5.1.0-beta.8
  • unaffected 5.1.0-beta.9 – < 5.1.0-beta.9
  • unaffected 5.0.52 – < 5.0.52

Affected packages

From reviewed advisories of the GitHub Advisory Database.

• npmaiGHSA-rwvc-j5jr-mgvh (opens in a new tab)

References (2)

• https://github.com/vercel/ai/commit/930399bb9839a8baf3d349614106d78268775eed (opens in a new tab)
• https://vercel.com/changelog/cve-2025-48985-input-validation-bypass-on-ai-sdk (opens in a new tab)

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisory GHSA-rwvc-j5jr-mgvh (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2025-48985](https://trackcve.app/badge/CVE-2025-48985.svg)](https://trackcve.app/cve/CVE-2025-48985)

Record last updated 1 Dec 2025, 20:12 UTC.