{"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"],"published":"2026-10-12","updated":"2026-10-12","sourceUpdated":"2026-10-12T02:16:57.297","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"],"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":"twilight","depthScore":48,"depthScoreParts":{"impact":48.4,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}