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CVE-2026-8767— vercel ai PR Branch Name Interpolation prettier-on-automerge.yml run os command injection

CVSS 5.0 · Medium EPSS 0.31% · P54

Possible ATT&CK Techniques 1AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 98

VendorProductVersion RangeStatus
vercelai3.0.0affected
3.0.1affected
3.0.2affected
3.0.3affected
3.0.4affected
3.0.5affected
3.0.6affected
3.0.7affected
… +90 more rows
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I. Basic Information for CVE-2026-8767

Vulnerability Information
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Vulnerability Title
vercel ai PR Branch Name Interpolation prettier-on-automerge.yml run os command injection
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability has been found in vercel ai up to 3.0.97. Impacted is the function run of the file .github/workflows/prettier-on-automerge.yml of the component PR Branch Name Interpolation. The manipulation leads to os command injection. The attack can be initiated remotely. The complexity of an attack is rather high. The exploitability is considered difficult. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: NVD (National Vulnerability Database)
Vulnerability Title
AI SDK 命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
AI SDK是Vercel开源的一个TypeScript的AI工具包。 AI SDK 3.0.97及之前版本存在命令注入漏洞，该漏洞源于PR Branch Name Interpolation组件中文件.github/workflows/prettier-on-automerge.yml的run函数存在操作系统命令注入，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

VendorProductAffected VersionsCPESubscribe
vercelai 3.0.0 cpe:2.3:a:vercel:ai:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-8767

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III. Intelligence Information for CVE-2026-8767

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Proof of Concept for CVE-2026-8767 (1)

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

CVE-2026-87687.3 HIGHvercel ai provider-utils download-blob.ts validateDownloadUrl server-side request forgery
CVE-2026-87694.3 MEDIUMvercel ai provider-utils response-handler.ts createJsonErrorResponseHandler resource consu

IV. Related Vulnerabilities

Same product: ai
Same vendor: vercel
Same weakness: CWE-78

V. Comments for CVE-2026-8767

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