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 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.

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History

Tue, 13 Oct 2026 20:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Mon, 12 Oct 2026 16:30:00 +0000

Type Values Removed Values Added
Title Directory Traversal in Plugin Installation Enables Root RCE in Blinko

Mon, 12 Oct 2026 02:15:00 +0000

Type Values Removed Values Added
Description 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 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.
First Time appeared Blinko
Blinko blinko
Weaknesses CWE-24
CPEs cpe:2.3:a:blinko:blinko:*:*:*:*:*:*:*:*
Vendors & Products Blinko
Blinko blinko
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-10-13T19:12:39.874Z

Reserved: 2026-10-12T01:55:58.302Z

Link: CVE-2026-108980

cve-icon Vulnrichment

Updated: 2026-10-13T19:12:32.351Z

cve-icon NVD

Status : Received

Published: 2026-10-12T02:16:57.297

Modified: 2026-10-13T20:17:25.223

Link: CVE-2026-108980

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-12T16:15:07Z

Weaknesses