{"id":"CVE-2026-108980","title":"Blinko through 1.8.8 allows directory traversal, overwriting startup files as root, via installPlugin","summary":"Blinko through 1.8.8 allows directory traversal, overwriting startup files as root, via installPlugin. It builds the plugin install path from an unsanitized name in server/routerTrpc/plugin.ts, and the plugin.installPlugin tRPC procedure…","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-24"],"vendor":"Blinko","product":"Blinko","affected":["Blinko <= 1.8.8"],"published":"2026-10-12","updated":"2026-10-16","sourceUpdated":"2026-10-16T19:56:15.773","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-108980","references":[{"url":"https://github.com/blinkospace/blinko/blob/178e4b3538a21823a50ac2481e653d56cb1ffa86/app/src/pages/signin.tsx#L238-L243","label":"cve@mitre.org"},{"url":"https://github.com/blinkospace/blinko/blob/178e4b3538a21823a50ac2481e653d56cb1ffa86/server/routerTrpc/plugin.ts#L273","label":"cve@mitre.org"},{"url":"https://github.com/kashishtopi/blinko-plugin-path-traversal-rce","label":"cve@mitre.org"}],"tags":["nvd","cve.org","exploit-available"],"epss":0.01063,"epssPercentile":0.64469,"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"total","timestamp":"2026-10-13T19:12:25.927139Z"},"ingestedAt":"2026-10-12T14:50:34.075Z","slug":"CVE-2026-108980","body":"## Overview\n\nBlinko through 1.8.8 allows directory traversal, overwriting startup files as root, via installPlugin. It builds the plugin install path from an unsanitized name in server/routerTrpc/plugin.ts, and the plugin.installPlugin tRPC procedure is open to any authenticated user. Thus, a name containing ../ sequences writes the downloaded plugin files outside the plugins directory. Because the official Docker image runs as root, an authenticated attacker overwrites a root-owned startup file and achieves remote code execution as root. Self-registration for an account may be possible.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":61,"depthScoreParts":{"impact":48.4,"likelihood":0.2,"exploitation":12,"ransomware":0},"changes":[{"seq":221101,"id":"CVE-2026-108980","ts":1792027079530,"field":"exploit_available","old":"false","new":"true"}]}