{"id":"CVE-2026-40263","revision":"758e2af9502144719dd2ffcd59330338","records":[{"revision":"758e2af9502144719dd2ffcd59330338","observedAt":"2026-10-27T10:09:56.341+00:00","statement":{"source":"nvd","id":"CVE-2026-40263","aliases":[],"title":"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…","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.","state":0,"publishedAt":"2026-04-17T01:17:40.137+00:00","modifiedAt":"2026-10-26T21:10:00.17+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · security-advisories@github.com · Secondary","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","score":3.7,"severity":"LOW"}],"references":["https://github.com/enchant97/note-mark/commit/cf4c6f6acf70b569d80396d323b067c00d45c034","https://github.com/enchant97/note-mark/security/advisories/GHSA-w6m9-39cv-2fwp"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-40263","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Deferred","weaknesses":["CWE-208"],"productCriteria":[],"sourceDates":{"published":"2026-04-17T01:17:40.137","lastModified":"2026-10-26T21:10:00.170"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-40263","identifiers":["CVE-2026-40263"]},"retained":false,"historicalAffected":[]}],"coverage":[]}