What is CVE-2026-8769?

CVE-2026-8769 is a medium-severity vulnerability in Vercel Ai, classified under Uncontrolled Resource Consumption. CVSS score: 4.3/10. Published 2026-05-17.

How severe is CVE-2026-8769?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Resource exhaustion in Vercel Ai

CVE-2026-8769

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-u…

Vulnerability class: DoS (Denial of Service)

EPSS: 0.000 (4.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.

Affected products

Vercel Ai — versions 3.0.0, 3.0.1, 3.0.2

Weakness classification (CWE)

References

cna@vuldb.com (Exploit, Third Party Advisory, exploit)
cna@vuldb.com (VDB Entry, Third Party Advisory, third-party-advisory)
cna@vuldb.com (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
cna@vuldb.com (signature, Permissions Required, permissions-required, VDB Entry)

Frequently asked questions

What is CVE-2026-8769?: CVE-2026-8769 is a medium-severity vulnerability in Vercel Ai, classified under Uncontrolled Resource Consumption. CVSS score: 4.3/10. Published 2026-05-17.
How severe is CVE-2026-8769?: Medium severity. CVSS v3 base score is 4.3 out of 10.