CVE-2025-48985A vulnerability in Vercel’s AI SDK has been fixed in versions 5.0.52, 5.1.0-beta.9, and 6.0.0-beta.
Updated under an hour ago ()
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It affects Vercel AI SDK and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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Free account, 1 product
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
- 3.7 LOW (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
- Weakness (CWE)
- CWE-20
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- hackerone
- NVD analysis
- Analyzed
- Record last updated
- Dec 1, 2025
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Vercel AI SDK vercel:ai_sdk (from the name) | from 5.0.51 through 5.0.51; from 6.0.0-beta.* before 6.0.0-beta.* not affected; from 5.1.0-beta.8 through 5.1.0-beta.8; from 5.1.0-beta.9 before 5.1.0-beta.9 not affected; from 5.0.52 before 5.0.52 not affected | CNA record |
vercel ai vercel:ai | before 5.0.52; 5.1.0; 5.1.0; 5.1.0; 5.1.0; 5.1.0; 5.1.0; 5.1.0; and 2 more ranges | NVD |
References
- https://github.com/vercel/ai/commit/930399bb9839a8baf3d349614106d78268775eedpatch
- https://vercel.com/changelog/cve-2025-48985-input-validation-bypass-on-ai-sdkvendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.