CVE-2026-40263

unknown

Published 2026-04-13 · Modified 2026-05-05

CVSS v3

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CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

CVSS v2

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VIR risk

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Description

Note Mark: Username Enumeration via Login Endpoint Timing Side-Channel

Predictions

Exploit likelihood

30%

Patch ETA

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Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No vendor mitigations ingested yet for this CVE. The mitigation-content worker queues fetches as references arrive — check back in a few minutes, or see the references list below.

Package impact

Ecosystem	Package	Vulnerable	Fixed
Go	github.com/enchant97/note-mark/backend	`<0.19.2-0.20260411145025-cf4c6f6acf70`	`0.19.2-0.20260411145025-cf4c6f6acf70`

References

Verify integrity in audit chain (admin only). AS-IS.