{"schema_version":"1.3.1","id":"GO-2026-5696","modified":"2026-06-25T22:34:38Z","published":"2026-06-25T22:34:38Z","aliases":["CVE-2026-40263","GHSA-w6m9-39cv-2fwp"],"summary":"Note Mark: Username Enumeration via Login Endpoint Timing Side-Channel in github.com/enchant97/note-mark/backend","details":"Note Mark: Username Enumeration via Login Endpoint Timing Side-Channel in github.com/enchant97/note-mark/backend.\n\nNOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.\n\n(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)\n\nThe additional affected modules and versions are: github.com/enchant97/note-mark/backend before v0.19.2-0.20260411145025-cf4c6f6acf70.","affected":[{"package":{"name":"github.com/enchant97/note-mark/backend","ecosystem":"Go"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"}]}],"ecosystem_specific":{"custom_ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.19.2-0.20260411145025-cf4c6f6acf70"}]}]}}],"references":[{"type":"ADVISORY","url":"https://github.com/enchant97/note-mark/security/advisories/GHSA-w6m9-39cv-2fwp"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-40263"},{"type":"WEB","url":"https://github.com/enchant97/note-mark/commit/cf4c6f6acf70b569d80396d323b067c00d45c034"}],"database_specific":{"url":"https://pkg.go.dev/vuln/GO-2026-5696","review_status":"UNREVIEWED"}}