CVE-2021-47969
High · 7.5CVSS
7.5
EPSS
0.3%
Published
May 16, 2026
CISA due date
—
The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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