Signal is active with 2 mentions in latest observed window
Recommended action window: Monitor and triage in normal cycle
NVD description
Note Mark is an open-source note-taking application. In versions 0.19.1 and prior, the login endpoint performs bcrypt password verification only when the supplied username exists, returning immediately for nonexistent usernames. This timing discrepancy allows unauthenticated attackers to enumerate valid usernames by measuring response times, enabling targeted credential attacks. This issue has been fixed in version 0.19.2.
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
NONE
Momentum
NONE
CVE-2026-40263 Note Mark is an open-source note-taking application. In versions 0.19.1 and prior, the login endpoint performs bcrypt password verification only when the supplied use… https://www.cve.org/CVERecord?id=CVE-2026-40263
Post summary
The note announces a vulnerability in Note Mark 0.19.1 and earlier, where the login endpoint’s bcrypt verification is conditional, explaining how the issue can be exploited.
CVE-2026-40263 Username Enumeration via Timing Attack in Note Mark 0.19.1 https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-40263
Post summary
The post announces CVE‑2026‑40263, detailing a username enumeration vulnerability via a timing attack in Note Mark 0.19.1, without providing PoC, exploit code, patch information, or evidence of active exploitation.