{"id":"CVE-2026-58578","summary":"LobeChat \u003c 2.2.10-canary.15 - Regular Expression Denial of Service in GitHub Skill Import","details":"LobeChat before version 2.2.10-canary.15 contains a regular expression denial of service (ReDoS) vulnerability that allows authenticated attackers to block the Node.js event loop by supplying a catastrophic-backtracking pattern in a GitHub repository URL path during skill import. Attackers can craft a malicious basePath value containing unescaped regex metacharacters such as catastrophic-backtracking patterns, which are injected into a dynamically constructed regular expression in the findSkillMd function and executed synchronously against archive entries, denying service to all concurrent users for tens of seconds per request.","modified":"2026-09-17T11:45:21.168988268Z","published":"2026-07-02T19:38:21.378Z","database_specific":{"cwe_ids":["CWE-1333"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/58xxx/CVE-2026-58578.json","cna_assigner":"VulnCheck"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/58xxx/CVE-2026-58578.json"},{"type":"ADVISORY","url":"https://github.com/lobehub/lobehub/releases/tag/v2.2.10-canary.15"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-58578"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/lobechat-canary-15-regular-expression-denial-of-service-in-github-skill-import"},{"type":"REPORT","url":"https://github.com/lobehub/lobehub/pull/16548"},{"type":"FIX","url":"https://github.com/lobehub/lobehub/commit/349bbe326eb8635d6d9c6a96d12702681ae3a84a"},{"type":"PACKAGE","url":"https://github.com/lobehub/lobehub"},{"type":"EVIDENCE","url":"https://github.com/lobehub/lobehub/issues/16494"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/lobehub/lobehub","events":[{"introduced":"0"},{"fixed":"287b8bb2288b921108d601f3d9c4d92da281ae7d"}],"database_specific":{"source":"AFFECTED_FIELD","extracted_events":[{"introduced":"0"},{"fixed":"2.2.10-canary.15"}]}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-58578.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"}]}