High 8.8Published Nov 1, 2026

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

Updated under an hour ago (Nov 2, 2026, 1:40 AM ET)

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No exploitation reported and no EPSS estimate yet.

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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.

CVSS: 8.8 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-22
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Received
Record last updated: Nov 1, 2026
First seen by InfoSec Signals: Nov 1, 2026

Affected products

Affected products

lobehub chat lobehub:chat (from the name)	from 1.84.26 before 2.1.49; 2.1.49 not affected	CNA record

References

References

https://github.com/lobehub/lobehub/security/advisories/GHSA-2g9j-v25c-4j97	vendor-advisory
https://www.vulncheck.com/advisories/lobehub-chat-1.84.26-before-2.1.49-path-traversal-rce-via-writetempfile	third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.