VulnerabilityAnalyzed

CVE-2025-48985

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.

MEDIUM 5.3EPSS 0.27%

Does this matter?

Lower severity and a low EPSS score (0.27%). Track it; it rarely justifies an emergency change on its own.

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

CVSS 3.1: 5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
EPSS: 0.27% probability · 18th percentile
CISA KEV: Not listed
Weakness: CWE-20
Affected: vercel/ai
Source: support@hackerone.com

References

https://github.com/vercel/ai/commit/930399bb9839a8baf3d349614106d78268775eedPatch
https://vercel.com/changelog/cve-2025-48985-input-validation-bypass-on-ai-sdkVendor Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.