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.

Code

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No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

1. May 16, 2026 · NIST NVD

   Detected

   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.

2. Jun 17, 2026 · NIST NVD

   Updated

   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.

Sources

• CVE.orgVulnerability recordCVE-2021-47970

  Official CVE identifier

  cve.org
• NIST NVDVulnerability recordCVE-2021-47970

  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

  nvd.nist.gov

References

• Reference · exploit-db.com
• Reference · vulncheck.com