{"id":"CVE-2026-55168","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-55168","generatedAt":"2026-10-28T09:42:08.935Z","title":"In 4.10.0 and earlier, Runtipi accepts symbolic links from an attacker-controlled backup archive and copies them into live application paths during the backup restore flow.","description":"Runtipi is a personal homeserver orchestrator. In 4.10.0 and earlier, Runtipi accepts symbolic links from an attacker-controlled backup archive and copies them into live application paths during the backup restore flow. An authenticated attacker can plant user-config/app.env as a symlink to an arbitrary reachable path and then send PUT /api/user-config/demoapp3:_user with attacker-controlled appEnv content. FilesystemService.writeTextFile() follows the planted link, allowing content to be written outside the intended restore and user-config directory boundary with Runtipi process permissions. This issue is fixed in version 4.10.1.","published":"2026-08-21T21:17:00.000Z","lastModified":"2026-10-14T19:10:00.000Z","status":"Deferred","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"3.1","score":6.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H"},"cwe":["CWE-59","CWE-61"],"affected":[],"epss":{"score":0.00609,"percentile":0.48925,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.61%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://github.com/runtipi/runtipi/commit/df529a211b05f3a0007b209b6c337f8c1942619c","source":"security-advisories@github.com"},{"url":"https://github.com/runtipi/runtipi/pull/2606","source":"security-advisories@github.com"},{"url":"https://github.com/runtipi/runtipi/releases/tag/v4.10.1","source":"security-advisories@github.com"},{"url":"https://github.com/runtipi/runtipi/security/advisories/GHSA-wcrf-g9p9-2wg7","source":"security-advisories@github.com"},{"url":"https://github.com/runtipi/runtipi/security/advisories/GHSA-wcrf-g9p9-2wg7","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-55168","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}