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Blinko CVE-2026-23481

| EUVD-2026-14531 MEDIUM
Path Traversal (CWE-22)
2026-03-23 GitHub_M
Path Traversal Blinko
6.5
CVSS 3.1 · GitHub Advisory
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GitHub Advisory PRIMARY
6.5 MEDIUM
AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None

Lifecycle Timeline

4
Patch available
Apr 16, 2026 - 05:29 EUVD
1.8.4
EUVD ID Assigned
Mar 23, 2026 - 20:45 euvd
EUVD-2026-14531
Analysis Generated
Mar 23, 2026 - 20:45 vuln.today
CVE Published
Mar 23, 2026 - 20:33 nvd
MEDIUM 6.5

DescriptionGitHub Advisory

Blinko is an AI-powered card note-taking project. Prior to version 1.8.4, there is an authenticated arbitrary file write vulnerability in saveAdditionalDevFile. This issue has been patched in version 1.8.4.

AnalysisAI

Blinko, an AI-powered card note-taking application, contains an authenticated arbitrary file write vulnerability in the saveAdditionalDevFile function that allows attackers to write files to arbitrary locations on the system via path traversal. This vulnerability affects all versions prior to 1.8.4 and requires authentication to exploit. …

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Vulnerability AssessmentAI

Risk Assessment While CVSS scoring data is not provided, the vulnerability's real-world risk is elevated due to several factors: it requires authentication (reducing attack surface scope), but impacts the core file system integrity of the application. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An authenticated user with standard privileges in a multi-user Blinko instance submits a crafted file save request to saveAdditionalDevFile with a path traversal payload (e.g., ../../../etc/blinko/config.json or an absolute path to a system-critical file). The function fails to validate the path and writes attacker-controlled content to the specified location, potentially overwriting application configuration files to inject malicious settings, disable authentication, or execute arbitrary code on the next application restart. …
Remediation Upgrade Blinko to version 1.8.4 or later immediately. … Detailed patch versions, workarounds, and compensating controls in full report.
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Recommended ActionAI

Within 30 days: Identify affected systems running saveAdditionalDevFile. …

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CVE-2026-23481 vulnerability details – vuln.today
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