{"affected":[{"defaultStatus":"unaffected","ecosystem":"npm","packageName":"%40lobehub/chat","product":"chat","source":"CNA: VulnCheck","vendor":"lobehub","versions":[{"lessThan":"2.1.49","status":"affected","version":"1.84.26","versionType":"semver"},{"status":"unaffected","version":"2.1.49","versionType":"semver"}]}],"cveId":"CVE-2026-120315","cwes":["CWE-22"],"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.","epss":null,"exploits":[],"kev":null,"metrics":[{"score":8.7,"severity":"high","source":"CNA: VulnCheck","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},{"score":8.8,"severity":"high","source":"CNA: VulnCheck","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}],"modifiedAt":1793584873641,"publishedAt":1793584873641,"references":[{"source":"CNA: VulnCheck","tags":["vendor-advisory"],"url":"https://github.com/lobehub/lobehub/security/advisories/GHSA-2g9j-v25c-4j97"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/lobehub-chat-1.84.26-before-2.1.49-path-traversal-rce-via-writetempfile"}],"remediation":[],"revision":"62efce22100a148282cc487aa49028687d40bde6ec601f0b4378bac8e07e9674","sources":[{"modifiedAt":1793584873641,"name":"CNA: VulnCheck","retrievedAt":1793588928304,"url":"https://www.cve.org/CVERecord?id=CVE-2026-120315"}],"ssvc":null,"status":"published","title":"LobeHub Chat 1.84.26 before 2.1.49 Path Traversal RCE via writeTempFile","updatedAt":1793588928304}