{"id":"CVE-2026-58578","title":"LobeChat < 2.2.10-canary.15 - Regular Expression Denial of Service in GitHub Skill Import","summary":"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 GitH…","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cvssSource":"cna","cwe":["CWE-1333"],"vendor":"lobehub","product":"lobehub","affected":["lobehub < 2.2.10-canary.15"],"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-07-06T19:00:14.398675Z"},"exploitAvailable":true,"published":"2026-07-02","updated":"2026-11-08","sourceUpdated":"2026-11-08T14:07:10.559Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-58578","references":[{"url":"https://github.com/lobehub/lobehub/releases/tag/v2.2.10-canary.15","label":"lobehub 2.2.10-canary.15 Release Notes"},{"url":"https://github.com/lobehub/lobehub/issues/16494","label":"Researcher Disclosure"},{"url":"https://github.com/lobehub/lobehub/pull/16548","label":"Fix PR"},{"url":"https://github.com/lobehub/lobehub/commit/349bbe326eb8635d6d9c6a96d12702681ae3a84a","label":"Fix Commit"},{"url":"https://www.vulncheck.com/advisories/lobechat-canary-15-regular-expression-denial-of-service-in-github-skill-import"}],"tags":["cve.org","exploit-available"],"epss":0.00548,"epssPercentile":0.46166,"ingestedAt":"2026-11-08T14:51:22.290Z","slug":"CVE-2026-58578","body":"## Overview\n\nLobeChat 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.\n\n## Affected\n\n- `lobehub < 2.2.10-canary.15`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":35.8,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[]}