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Vulnerability · Published May 17, 2026 · Assigned by VulDB

CVE-2026-8769vercel ai provider-utils response-handler.ts createJsonErrorResponseHandler resource consumption

Medium 4.3

In plain English

A medium-severity uncontrolled resource consumption in ai from vercel. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 47% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)4.3Medium
Exploit odds (30 days)0.6%top 53.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
npm@ai-sdk/provider-utils3.0.28GHSA-866g-f22w-33x8
npm@ai-sdk/provider-utils4.0.33GHSA-866g-f22w-33x8
npm@ai-sdk/provider-utils5.0.1GHSA-866g-f22w-33x8

Affected products (as reported)

VendorProductVersions
vercel ai 3.0.03.0.13.0.23.0.33.0.43.0.53.0.63.0.7

Weakness: CWE-400, CWE-404 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R

References