PT-2026-41455 · Color Notes · Color Notes

Geovanni Ruiz · Published 2026-05-16 · Updated 2026-05-16 · CVE-2021-47969

Mitre

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Color Notes 1.4 contains a denial of service vulnerability that allows attackers to crash the application by pasting excessively long character strings into note fields. Attackers can generate a payload containing 350,000 repeated characters and paste it twice into a new note to cause the application to stop responding.

Exploit

Fix

Weakness Enumeration

CWE-789

Related Identifiers

CVE-2021-47969

Affected Products

Color Notes

References · 3

• 🔥 https://exploit-db.com/exploits/49952 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2021-47969 · Security Note
• https://vulncheck.com/advisories/color-notes-denial-of-service-via-long-character-string · Note