CVE-2026-23482
HighBlinko: Unauthorized Arbitrary File Read - /api/file/temp
Published Mar 23, 2026 · Updated Aug 12, 2026 · Also known as GHSA-hrwx-rhrx-f9mm
Key Facts
Patch in the next maintenance window- CVE-2026-23482 is a high-severity vulnerability (CVSS 8.2 v4) affecting Blinko.
- It is not listed in any known-exploited vulnerabilities catalog. No public exploit code is known.
- EPSS estimates a 1.5% probability of exploitation in the next 30 days.
- Fixed versions are available, including Blinko 1.8.4.
- Brandefense priority: patch in the next maintenance window, because of its high severity, although no exploitation is known.
CVSS v4
8.2
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS (30-day exploit likelihood)
1.5%
Higher than 74.2% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
None known
Get the full CVE-2026-23482 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
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
2 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| BlinkoBlinko | >= < 1.8.4 | 1.8.4 |
Patched Releases
Blinko
1.8.4
Timeline
Publicly disclosed
Mar 23, 2026
Last updated
Aug 12, 2026
Weakness Type
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
References
- advisoryhttps://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23482.json
- advisoryhttps://nvd.nist.gov/vuln/detail/CVE-2026-23482
- otherhttps://github.com/blinkospace/blinko/commit/c48851090767feba431418630c495d90a7da1781
- otherhttps://github.com/blinkospace/blinko/releases/tag/1.8.4
- otherhttps://github.com/blinkospace/blinko/security/advisories/GHSA-hrwx-rhrx-f9mm
FAQ
Common Questions.
Blinko is an AI-powered card note-taking project.
Affected: Blinko versions >= < 1.8.4. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
Fixed versions are available, including Blinko 1.8.4.
Brandefense priority: patch in the next maintenance window, because of its high severity, although no exploitation is known.
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