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CVE-2026-120315— LobeHub Chat 1.84.26 before 2.1.49 Path Traversal RCE via writeTempFile

Quick assessment

Affected
lobehub chat
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.

LobeHub Chat 版本从 1.84.26 到 2.1.49（不含）存在路径遍历漏洞。该漏洞允许已认证用户通过向 函数传入未经验证的文件名，从而写入任意文件。攻击者可先利用 创建带有路径遍历字符的文件记录，随后触发文档解析流程，覆盖应用程序关键文件（如 ），进而实现代码执行或导致拒绝服务（DoS）。

CVSS 8.8 · High
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I. Basic Information for CVE-2026-120315

Vulnerability Information
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Vulnerability Title
LobeHub Chat 1.84.26 before 2.1.49 Path Traversal RCE via writeTempFile
Source: CVE Program / CVE List V5
Vulnerability Description
LobeHub Chat from 1.84.26 before 2.1.49 contains a path traversal vulnerability that allows authenticated users to write arbitrary files by supplying unsanitized file names to writeTempFile(). Attackers can create a file record via file.createFile with a traversal name, then trigger document parsing to overwrite application files like startServer.js for code execution or denial of service.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
lobehub chat 1.84.26 ~ 2.1.49 -

II. Public POCs for CVE-2026-120315

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III. Intelligence Information for CVE-2026-120315

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Other References for CVE-2026-120315 (2)

IV. Related Vulnerabilities

Same product: chat
Same vendor: lobehub
Same weakness: CWE-22