{"id":"GHSA-wjqw-r9x4-j59v","summary":"Parse Server affected by empty authData bypassing credential requirement on signup","details":"### Impact\n\nA user can sign up without providing credentials by sending an empty `authData` object, bypassing the username and password requirement. This allows the creation of authenticated sessions without proper credentials, even when anonymous users are disabled.\n\n### Patches\n\nThe fix ensures that empty or non-actionable `authData` is treated the same as absent `authData` for the purpose of credential validation on new user creation. Username and password are now required when no valid auth provider data is present.\n\n### Workarounds\n\nUse a Cloud Code `beforeSave` trigger on the `_User` class to reject signups where `authData` is empty and no username/password is provided.","aliases":["BIT-parse-2026-33042","CVE-2026-33042"],"modified":"2026-03-20T12:26:21.533093Z","published":"2026-03-17T19:50:44Z","database_specific":{"github_reviewed":true,"github_reviewed_at":"2026-03-17T19:50:44Z","nvd_published_at":"2026-03-18T22:16:26Z","cwe_ids":["CWE-287"],"severity":"MODERATE"},"references":[{"type":"WEB","url":"https://github.com/parse-community/parse-server/security/advisories/GHSA-wjqw-r9x4-j59v"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-33042"},{"type":"WEB","url":"https://github.com/parse-community/parse-server/pull/10219"},{"type":"WEB","url":"https://github.com/parse-community/parse-server/pull/10220"},{"type":"PACKAGE","url":"https://github.com/parse-community/parse-server"}],"affected":[{"package":{"name":"parse-server","ecosystem":"npm","purl":"pkg:npm/parse-server"},"ranges":[{"type":"SEMVER","events":[{"introduced":"9.0.0"},{"fixed":"9.6.0-alpha.29"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-wjqw-r9x4-j59v/GHSA-wjqw-r9x4-j59v.json"}},{"package":{"name":"parse-server","ecosystem":"npm","purl":"pkg:npm/parse-server"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"8.6.49"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-wjqw-r9x4-j59v/GHSA-wjqw-r9x4-j59v.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N"}]}