What is GHSA-4439-4hh6-5j2w?

GHSA-4439-4hh6-5j2w is a security advisory published by GitHub Security Advisories with High severity. Macaron Notes 5.5 contains a denial of service vulnerability that allows attackers to crash the...

Which CVE IDs does GHSA-4439-4hh6-5j2w cover?

GHSA-4439-4hh6-5j2w covers the following CVE IDs: CVE-2021-47970. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-4439-4hh6-5j2w?

GHSA-4439-4hh6-5j2w has a CVSS v3 base score of 7.5, published by GitHub Security Advisories.

GHSA-4439-4hh6-5j2wHighCVSS 7.5

Macaron Notes 5.5 contains a denial of service vulnerability that allows attackers to crash the...

Vendor

GitHub Security Advisories

Published

May 16, 2026

Last Modified

May 16, 2026

🔗 CVE IDs covered (1)

CVE-2021-47970 →

📋 Description

Macaron Notes 5.5 contains a denial of service vulnerability that allows attackers to crash the application by creating notes with excessively long character strings. Attackers can generate a payload containing 350000 repeated characters and paste it into a note field to trigger application crash and stop functionality.

🔗 References (4)

https://nvd.nist.gov/vuln/detail/CVE-2021-47970
https://www.exploit-db.com/exploits/49953
https://www.vulncheck.com/advisories/macaron-notes-denial-of-service-via-buffer-overflow
https://github.com/advisories/GHSA-4439-4hh6-5j2w