CVE-2026-8769CWE-400CWE-404denial-of-service

CVE-2026-8769

Medium · published May 18, 2026

CVSS v3.1
4.3
EPSS
1%
Percentile
45.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
4.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
CVSS v4.0
Not supplied
EPSS
0.00561 · 45.9th percentile
Weaknesses
CWE-400 · Uncontrolled Resource Consumption; CWE-404 · Improper Resource Shutdown or Release
Published
2026-05-18T03:17Z
Affected products (1)
ProductVersionsFixed in
vercel/ai≤ 3.0.97—
References (4)
https://gist.github.com/YLChen-007/fb1096bc8428bed9a428f764d9d103bb · [email protected]https://vuldb.com/submit/811406 · [email protected]https://vuldb.com/vuln/364394 · [email protected]https://vuldb.com/vuln/364394/cti · [email protected]
EPSS history
Timeline
  • 17 MAY 23:00Z
    vercel ai provider-utils response-handler.ts createJsonErrorResponseHandler resource consumption
    cvelistv5