CVE-2025-48985

ℹ️ low

Summary

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 Score

3.7

Low

EPSS Score

0.3

Exploit Probability

Published Date

2025-11-07

First Seen: 2026-01-05

📊 Relative Risk Intelligence

This CVE is Lower Risk - more severe than 3.9% of all 365,890 vulnerabilities in our database.

#351,731

Below average severity

Severity Percentile

🎯 CISA SSVC Assessment Updated: Nov 7, 2025

🔍 Exploitation Status

None

No known exploits

⚙️ Automatable

Requires human interaction

💥 Technical Impact

Partial

Limited system impact

SSVC data provided by CISA

Last Modified 2026-10-07

Source NVD 🔗

CVSS Vector 3.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N

CWE IDs (Weakness Types)

CWE-20

📦 Affected Products 4

Vendor	Product	Status	Affected Versions
vercel	ai_sdk	Affected	≥ 5.0.51 ≤ 5.0.51
vercel	ai_sdk	Affected	≥ 5.1.0-beta.8 ≤ 5.1.0-beta.8
vercel	ai	Affected	< 5.0.52
vercel	ai	Affected	v5.1.0

🔗 References 2

https://github.com/vercel/ai/commit/930399bb9839a8ba...

Patch

https://vercel.com/changelog/cve-2025-48985-input-va...

Vendor Advisory

🔗 Related CVEs 3

CVE ID	Severity	CVSS	EPSS	Summary	Published
CVE-2026-8767	🔶 medium	5.0	7.0	A vulnerability has been found in vercel ai up to 3.0.97. Impacted is the function run of the file .github/workflows/pre...	2026-05-17
CVE-2026-8768	⚠️ high	7.3	0.7	A vulnerability was found in vercel ai up to 3.0.97. The affected element is the function validateDownloadUrl of the fil...	2026-05-17
CVE-2026-8769	🔶 medium	4.3	0.7	A vulnerability was determined in vercel ai up to 3.0.97. The impacted element is the function createJsonResponseHandler...	2026-05-17

These CVEs affect the same products