CVE-2026-108980

Directory Traversal in Plugin Installation Enables Root RCE in Blinko

Published Oct 12, 2026 CVSS 3.1 · 8.8 High EPSS 1.1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

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

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

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Oct 13, 2026, 7:12 PM
Reserved
Oct 12, 2026, 1:55 AM
Status
Deferred
Published
Oct 12, 2026, 2:16 AM
Modified
Oct 16, 2026, 7:56 PM