{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-41571","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-04-21T14:15:21.957Z","datePublished":"2026-05-04T17:42:32.428Z","dateUpdated":"2026-05-04T20:20:53.632Z"},"containers":{"cna":{"title":"Note Mark: OIDC-registered users authenticated by submitting password \"null\"","problemTypes":[{"descriptions":[{"cweId":"CWE-287","lang":"en","description":"CWE-287: Improper Authentication","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":9.4,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L","version":"3.1"}}],"references":[{"name":"https://github.com/enchant97/note-mark/security/advisories/GHSA-pxf8-6wqm-r6hh","tags":["x_refsource_CONFIRM"],"url":"https://github.com/enchant97/note-mark/security/advisories/GHSA-pxf8-6wqm-r6hh"},{"name":"https://github.com/enchant97/note-mark/releases/tag/v0.19.3","tags":["x_refsource_MISC"],"url":"https://github.com/enchant97/note-mark/releases/tag/v0.19.3"}],"affected":[{"vendor":"enchant97","product":"note-mark","versions":[{"version":"= 0.19.2","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-05-04T17:42:32.428Z"},"descriptions":[{"lang":"en","value":"Note Mark is an open-source note-taking application. In version 0.19.2, IsPasswordMatch in backend/db/models.go falls back to a hard-coded bcrypt(\"null\") placeholder whenever a user has no stored password. OIDC-registered users are created with an empty password, so anyone who submits password: \"null\" to the internal login endpoint receives a valid session for that user. The bypass is unauthenticated and requires no user interaction. This issue has been patched in version 0.19.3."}],"source":{"advisory":"GHSA-pxf8-6wqm-r6hh","discovery":"UNKNOWN"}},"adp":[{"references":[{"url":"https://github.com/enchant97/note-mark/security/advisories/GHSA-pxf8-6wqm-r6hh","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-05-04T20:20:49.852480Z","id":"CVE-2026-41571","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-05-04T20:20:53.632Z"}}]}}