GHSA-rwvc-j5jr-mgvh

Vercel’s AI SDK's filetype whitelists can be bypassed when uploading files

Source: GitHub Advisory Database (reviewed) Low CVE-2025-48985

Packages

Ecosystem	Package	Affected	Fixed in
npm	ai	< 5.0.52	5.0.52
npm	ai	>= 5.1.0-beta.0, < 5.1.0-beta.9	5.1.0-beta.9

Details

As written in the advisory (Markdown source, shown as plain text).

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.

References

External links from the advisory. They lead to third-party sites.

https://nvd.nist.gov/vuln/detail/CVE-2025-48985 advisory
https://github.com/vercel/ai/issues/8881 web
https://github.com/vercel/ai/commit/930399bb9839a8baf3d349614106d78268775eed web
https://github.com/vercel/ai package
https://vercel.com/changelog/cve-2025-48985-input-validation-bypass-on-ai-sdk web