{"id":"CVE-2026-41571","state":"PUBLISHED","title":"Note Mark: OIDC-registered users authenticated by submitting password \"null\"","description":"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.","publishedAt":"2026-05-04T17:42:32.428Z","updatedAt":"2026-05-04T20:20:53.632Z","severity":{"score":9.4,"label":"Critical","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L","source":"GitHub_M"},"assigner":"GitHub_M","products":["enchant97 note-mark"],"affected":[{"vendor":"enchant97","product":"note-mark","versions":[{"version":"= 0.19.2","status":"affected"}]}],"references":["https://github.com/enchant97/note-mark/security/advisories/GHSA-pxf8-6wqm-r6hh","https://github.com/enchant97/note-mark/releases/tag/v0.19.3"],"weaknesses":["CWE-287"],"ingestedAt":"2026-10-29T20:11:57.932Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/41xxx/CVE-2026-41571.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-41571","state":"PUBLISHED","datePublished":"2026-05-04T17:42:32.428Z","dateUpdated":"2026-05-04T20:20:53.632Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-04-21T14:15:21.957Z"},"containers":{"cna":{"title":"Note Mark: OIDC-registered users authenticated by submitting password \"null\"","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."}],"affected":[{"vendor":"enchant97","product":"note-mark","versions":[{"version":"= 0.19.2","status":"affected"}]}],"references":[{"url":"https://github.com/enchant97/note-mark/security/advisories/GHSA-pxf8-6wqm-r6hh","name":"https://github.com/enchant97/note-mark/security/advisories/GHSA-pxf8-6wqm-r6hh","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/enchant97/note-mark/releases/tag/v0.19.3","name":"https://github.com/enchant97/note-mark/releases/tag/v0.19.3","tags":["x_refsource_MISC"]}],"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"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-287","lang":"en","description":"CWE-287: Improper Authentication","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-05-04T17:42:32.428Z"},"source":{"advisory":"GHSA-pxf8-6wqm-r6hh","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","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"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-05-04T20:20:53.632Z"}}]}}}