What’s Vulnerable › Vulnerabilities

CVE-2026-23488: Blinko: multiple interfaces in the comment feature allow unauthorized access

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-03-23 · updated 2026-06-17
• Weakness: CWE-639

Description

Blinko is an AI-powered card note-taking project. Prior to version 1.8.4, the /api/v1/comment/create endpoint has an unauthorized access vulnerability, allowing attackers to post comments on any note (including private notes) without authorization, even if the note has not been publicly shared. The /api/v1/comment/list endpoint has the same issue, allowing unauthorized viewing of comments on all notes. 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/4623dd02bdeed768ffa6fea4cc2f8644cbb08c5e
• https://github.com/blinkospace/blinko/pull/1089
• https://github.com/blinkospace/blinko/releases/tag/1.8.4
• https://github.com/blinkospace/blinko/security/advisories/GHSA-84hm-vw62-472m

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