CVE-2026-108980 Details
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.
A directory traversal vulnerability has been identified in Blinko versions through 1.8.8. The issue allows authenticated users to overwrite startup files owned by root, leading to remote code execution as root. This vulnerability arises from the plugin installation process, where the file path is constructed using an unsanitized name, enabling the use of '../' sequences to write files outside the designated plugins directory. The official Docker image of Blinko runs as root, amplifying the impact of this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 12, 2026CISA-ADP
Assessed Oct 13, 2026References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-24 | Path Traversal: '../filedir' | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Blinko | <= 1.8.8 (semver) |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 13, 2026 | CVE Modified | CISA-ADP |
| Oct 12, 2026 | New CVE Received | [email protected] |