CVE-2026-44287— FastGPT: sandbox escape to RCE - code-sandbox regex /\bimport\s*\(/ is bypassable
Possible ATT&CK Techniques 1AI
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I. Basic Information for CVE-2026-44287
Vulnerability Information
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Vulnerability Title
FastGPT: sandbox escape to RCE - code-sandbox regex /\bimport\s*\(/ is bypassable
Source: NVD (National Vulnerability Database)
Vulnerability Description
FastGPT is an AI Agent building platform. Prior to 4.15.0-beta1, the JavaScript sandbox worker at projects/code-sandbox/src/pool/worker.ts:356 blocks dynamic import() with the regex /\bimport\s*\(/.test(code). JavaScript syntax accepts a block comment between import and (; the regex matches only ASCII whitespace, and the bytes /, *, *, / are not in the \s character class. The payload import/**/("child_process") parses as a syntactically valid dynamic import that the regex does not detect. Because import() is not wrapped by the safeRequire Proxy (which only proxies require), the attacker loads child_process and calls execSync - arbitrary command execution as uid=100(sandbox) inside the sandbox container. This vulnerability is fixed in 4.15.0-beta1.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
对生成代码的控制不恰当(代码注入)
Source: NVD (National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2026-44287
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Vendor Advisories for CVE-2026-44287 (1)
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V. Comments for CVE-2026-44287
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