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

Quick assessment

Affected
vercel ai
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Vercel AI SDK是Vercel公司的一个支持大语言模型接入、流式响应与AI应用开发的JavaScript SDK。 Vercel AI SDK 3.0.97及之前版本存在资源管理错误漏洞，该漏洞源于provider-utils组件中文件packages/provider-utils/src/response-handler.ts的createJsonResponseHandler/createJsonErrorResponseHandler函数存在资源消耗，可能导致远程攻击者利用该漏洞。

CVSS 4.3 · Medium EPSS 0.73% · P52

Possible ATT&CK Techniques 1 AI

T1496 · Resource Hijacking

Affected Version Matrix 98

VendorProduct Version RangeStatus
vercel ai 3.0.0 affected
3.0.1 affected
3.0.2 affected
3.0.3 affected
3.0.4 affected
3.0.5 affected
3.0.6 affected
3.0.7 affected
… +90 more rows
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I. Basic Information for CVE-2026-8769

Vulnerability Information
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Vulnerability Title
vercel ai provider-utils response-handler.ts createJsonErrorResponseHandler resource consumption
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: CVE Program / CVE List V5
Vulnerability Title
Vercel AI SDK 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Vercel AI SDK是Vercel公司的一个支持大语言模型接入、流式响应与AI应用开发的JavaScript SDK。 Vercel AI SDK 3.0.97及之前版本存在资源管理错误漏洞，该漏洞源于provider-utils组件中文件packages/provider-utils/src/response-handler.ts的createJsonResponseHandler/createJsonErrorResponseHandler函数存在资源消耗，可能导致远程攻击者利用该漏洞。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
vercel ai 3.0.0 cpe:2.3:a:vercel:ai:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-8769

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III. Intelligence Information for CVE-2026-8769

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Proof of Concept for CVE-2026-8769 (1)

Same Patch Batch · vercel · 2026-05-17 · 3 CVEs total

CVE-2026-8768 7.3 HIGH vercel ai provider-utils download-blob.ts validateDownloadUrl server-side request forgery
CVE-2026-8767 5.0 MEDIUM vercel ai PR Branch Name Interpolation prettier-on-automerge.yml run os command injection

IV. Related Vulnerabilities

Same product: ai
Same vendor: vercel
Same weakness: CWE-400

V. Comments for CVE-2026-8769

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