CVE-2026-8769
Medium
Description
A vulnerability was determined in vercel ai up to 3.0.97. The impacted element is the function createJsonResponseHandler/createJsonErrorResponseHandler of the file packages/provider-utils/src/response-handler.ts of the component provider-utils. This manipulation causes resource consumption. The attack may be initiated remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.
SeverityMedium
CVSS4.3
Exploit probability—
Product
Vercel Ai
PublishedMay 17, 2026
First seenMay 17, 2026
How to fix
Update
- @ai-sdk/provider-utils3.0.28, 4.0.33, 5.0.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| vercel ai | v ≤ 3.0.97 | — |
| @ai-sdk/provider-utilsnpm | v < 3.0.28, 4.0.0-beta.10 ≤ v < 4.0.33, 5.0.0-beta.0 ≤ v < 5.0.1 | 3.0.28, 4.0.33, 5.0.1 |
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