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

High 8.2 Published 23 Mar 2026 Updated 24 Mar 2026

Attackers can read arbitrary server files via path traversal in the temp endpoint, potentially stealing user notes and tokens.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-23482?

CVE-2026-23482 is a high-severity path traversal vulnerability in blinkospace blinko, published on 23 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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.

Weakness: CWE-22

Which versions are affected by CVE-2026-23482?

It affects 1 product.

Products include Blinko Blinko.

How do I fix CVE-2026-23482?

No fix has been published for CVE-2026-23482 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2026-23482 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-23482 exists.

Public exploit code: 1 Nuclei template.

Sources

Also known as GHSA-hrwx-rhrx-f9mm.