CVE-2026-44523

CRITICAL 10.0EPSS 0.1%

Note Mark is an open-source note-taking application. Prior to 0.19.4, no minimum length or entropy is enforced on the JWT_SECRET configuration value. The application accepts any base64-decodable secret regardless of size, including secrets as short as 1 byte. This vulnerability is fixed in 0.19.4.

CVSS v3.1: 10.0 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
CVSS v3.1: 10.0 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
EPSS: 0.12% chance of exploitation in the next 30 days, 2th percentile
Published: 2026-05-14
Updated: 2026-05-15

Proof-of-concept exploits (1)

advisories/GHSA-q6mh-rqwh-g786

References

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