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-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.
Vulnerability class: DoS (Denial of Service)
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.007 (52.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 52nd percentile — 52.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.007 · change: +0.002
Affected products
- Vercel Ai — versions 3.0.0, 3.0.1, 3.0.2
Weakness classification (CWE)
References
- gist.github.com/YLChen-007/fb1096bc8428bed9a428f764d9d103bb (Exploit, Third Party Advisory, exploit)
- vuldb.com/submit/811406 (VDB Entry, Third Party Advisory, third-party-advisory)
- vuldb.com/vuln/364394 (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
- vuldb.com/vuln/364394/cti (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.