What’s Vulnerable › Vulnerabilities

CVE-2026-23482: Blinko: Unauthorized Arbitrary File Read - /api/file/temp

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-03-23 · updated 2026-06-17
• Weakness: CWE-22

Description

Blinko is an AI-powered card note-taking project. Prior to version 1.8.4, the file server endpoint does not perform permission checks on the temp/ path and does not filter path traversal sequences, allowing unauthorized attackers to read arbitrary files on the server. When scheduled backup tasks are enabled, attackers can read backup files to obtain all user notes and user TOKENS. This issue has been patched in version 1.8.4.

Affected products

• blinkospace blinko: before 1.8.4 — fixed in 1.8.4

How to fix

Upgrade to a fixed version: blinkospace blinko 1.8.4. Check the vendor advisory for mitigations.

References

• https://github.com/blinkospace/blinko/commit/c48851090767feba431418630c495d90a7da1781
• https://github.com/blinkospace/blinko/releases/tag/1.8.4
• https://github.com/blinkospace/blinko/security/advisories/GHSA-hrwx-rhrx-f9mm

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