{"id":"CVE-2026-31872","aliases":["BIT-parse-2026-31872","EUVD-2026-11279","GHSA-r2m8-pxm9-9c4g"],"status":"published","title":"Parse Server has a protected fields bypass via dot-notation in query and sort","description":"Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.6.0-alpha.6 and 8.6.32, the protectedFields class-level permission (CLP) can be bypassed using dot-notation in query WHERE clauses and sort parameters. An attacker can use dot-notation to query or sort by sub-fields of a protected field, enabling a binary oracle attack to enumerate protected field values. This affects both MongoDB and PostgreSQL deployments. This vulnerability is fixed in 9.6.0-alpha.6 and 8.6.32.","severity":{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00418,"percentile":0.36538,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-284"],"published":"2026-03-11T00:34:59Z","modified":"2026-10-28T02:31:02Z","fixes":[{"ecosystem":"npm","package":"parse-server","fixed_in":["9.6.0-alpha.6","8.6.32"],"sources":["ghsa","osv"]},{"ecosystem":"Bitnami","package":"parse","fixed_in":["8.6.32","9.6.0"],"sources":["osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"parse-server","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"9.0.0-alpha.1"},{"fixed":"9.6.0-alpha.6"}]}]},{"source":"ghsa","ecosystem":"npm","package":"parse-server","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8.6.32"}]}]},{"source":"osv","ecosystem":"Bitnami","package":"parse","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"8.6.32"},{"introduced":"9.0.0"},{"fixed":"9.6.0"}]}]},{"source":"osv","ecosystem":"npm","package":"parse-server","ranges":[{"type":"SEMVER","events":[{"introduced":"9.0.0-alpha.1"},{"fixed":"9.6.0-alpha.6"}]}]},{"source":"osv","ecosystem":"npm","package":"parse-server","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"8.6.32"}]}]}],"products":[{"vendor":"parse-community","product":"parse-server"},{"vendor":"parseplatform","product":"parse-server"}],"references":[{"url":"https://github.com/parse-community/parse-server/security/advisories/GHSA-r2m8-pxm9-9c4g","tags":["x_refsource_CONFIRM","Patch","Vendor Advisory","advisory","web"]},{"url":"https://github.com/parse-community/parse-server/releases/tag/8.6.32","tags":["x_refsource_MISC","Product","Release Notes","article","web"]},{"url":"https://github.com/parse-community/parse-server/releases/tag/9.6.0-alpha.6","tags":["x_refsource_MISC","Product","Release Notes","article","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-31872","tags":["web","advisory"]},{"url":"https://github.com/advisories/GHSA-r2m8-pxm9-9c4g"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31872.json","tags":["advisory"]},{"url":"https://github.com/parse-community/parse-server","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-31872","title":"Parse Server has a protected fields bypass via dot-notation in query and sort","description":"Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.6.0-alpha.6 and 8.6.32, the protectedFields class-level permission (CLP) can be bypassed using dot-notation in query WHERE clauses and sort parameters. An attacker can use dot-notation to query or sort by sub-fields of a protected field, enabling a binary oracle attack to enumerate protected field values. This affects both MongoDB and PostgreSQL deployments. This vulnerability is fixed in 9.6.0-alpha.6 and 8.6.32.","status":"published","published":"2026-03-11T18:02:57.039Z","modified":"2026-03-12T20:09:15.616Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","level":"high","assessor":"cna"}],"cwes":["CWE-284"],"updated_at":"2026-11-02T14:19:51.277563Z"}],"euvd":[{"id":"EUVD-2026-11279","description":"Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.6.0-alpha.6 and 8.6.32, the protectedFields class-level permission (CLP) can be bypassed using dot-notation in query WHERE clauses and sort parameters. An attacker can use dot-notation to query or sort by sub-fields of a protected field, enabling a binary oracle attack to enumerate protected field values. This affects both MongoDB and PostgreSQL deployments. This vulnerability is fixed in 9.6.0-alpha.6 and 8.6.32.","status":"published","published":"2026-03-11T18:02:57Z","modified":"2026-03-12T20:09:15Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","level":"high"}],"updated_at":"2026-11-02T19:25:35.389351Z"}],"ghsa":[{"id":"GHSA-r2m8-pxm9-9c4g","title":"Parse Server has a protected fields bypass via dot-notation in query and sort","description":"### Impact\n\nThe `protectedFields` class-level permission (CLP) can be bypassed using dot-notation in query WHERE clauses and sort parameters. An attacker can use dot-notation to query or sort by sub-fields of a protected field, enabling a binary oracle attack to enumerate protected field values.\n\nThis affects both MongoDB and PostgreSQL deployments.\n\n### Patches\n\nThe fix ensures that query WHERE clause keys and sort keys are checked against protected fields by extracting the root field from dot-notation paths. For example, a query on `secretObj.apiKey` is now correctly blocked when `secretObj` is a protected field.\n\n### Workarounds\n\nNone.\n\n### References\n\n- GitHub security advisory: https://github.com/parse-community/parse-server/security/advisories/GHSA-r2m8-pxm9-9c4g\n- Fix Parse Server 9: https://github.com/parse-community/parse-server/releases/tag/9.6.0-alpha.6\n- Fix Parse Server 8: https://github.com/parse-community/parse-server/releases/tag/8.6.32","status":"published","published":"2026-03-11T00:34:59Z","modified":"2026-03-11T20:57:49Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","level":"high"}],"cwes":["CWE-284"],"updated_at":"2026-11-02T14:39:34.616253Z"}],"nvd":[{"id":"CVE-2026-31872","description":"Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.6.0-alpha.6 and 8.6.32, the protectedFields class-level permission (CLP) can be bypassed using dot-notation in query WHERE clauses and sort parameters. An attacker can use dot-notation to query or sort by sub-fields of a protected field, enabling a binary oracle attack to enumerate protected field values. This affects both MongoDB and PostgreSQL deployments. This vulnerability is fixed in 9.6.0-alpha.6 and 8.6.32.","status":"published","published":"2026-03-11T18:16:26.83Z","modified":"2026-06-17T10:34:40.373Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high","assessor":"secondary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"primary"}],"cwes":["CWE-284"],"updated_at":"2026-11-02T14:12:08.98071Z"}],"osv":[{"id":"CVE-2026-31872","title":"Parse Server has a protected fields bypass via dot-notation in query and sort","description":"Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.6.0-alpha.6 and 8.6.32, the protectedFields class-level permission (CLP) can be bypassed using dot-notation in query WHERE clauses and sort parameters. An attacker can use dot-notation to query or sort by sub-fields of a protected field, enabling a binary oracle attack to enumerate protected field values. This affects both MongoDB and PostgreSQL deployments. This vulnerability is fixed in 9.6.0-alpha.6 and 8.6.32.","status":"published","published":"2026-03-11T18:02:57.039Z","modified":"2026-10-28T02:31:02.341923051Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","level":"high"}],"cwes":["CWE-284"],"updated_at":"2026-11-02T15:45:01.218144Z"},{"id":"GHSA-r2m8-pxm9-9c4g","title":"Parse Server has a protected fields bypass via dot-notation in query and sort","description":"### Impact\n\nThe `protectedFields` class-level permission (CLP) can be bypassed using dot-notation in query WHERE clauses and sort parameters. An attacker can use dot-notation to query or sort by sub-fields of a protected field, enabling a binary oracle attack to enumerate protected field values.\n\nThis affects both MongoDB and PostgreSQL deployments.\n\n### Patches\n\nThe fix ensures that query WHERE clause keys and sort keys are checked against protected fields by extracting the root field from dot-notation paths. For example, a query on `secretObj.apiKey` is now correctly blocked when `secretObj` is a protected field.\n\n### Workarounds\n\nNone.\n\n### References\n\n- GitHub security advisory: https://github.com/parse-community/parse-server/security/advisories/GHSA-r2m8-pxm9-9c4g\n- Fix Parse Server 9: https://github.com/parse-community/parse-server/releases/tag/9.6.0-alpha.6\n- Fix Parse Server 8: https://github.com/parse-community/parse-server/releases/tag/8.6.32","status":"published","published":"2026-03-11T00:34:59Z","modified":"2026-03-13T13:10:57.234333Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","level":"high"}],"cwes":["CWE-284"],"updated_at":"2026-11-02T15:46:55.122811Z"},{"id":"BIT-parse-2026-31872","title":"Parse Server has a protected fields bypass via dot-notation in query and sort","description":"Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.6.0 and 8.6.32, the protectedFields class-level permission (CLP) can be bypassed using dot-notation in query WHERE clauses and sort parameters. An attacker can use dot-notation to query or sort by sub-fields of a protected field, enabling a binary oracle attack to enumerate protected field values. This affects both MongoDB and PostgreSQL deployments. This vulnerability is fixed in 9.6.0 and 8.6.32.","status":"published","published":"2026-03-13T12:28:47.303Z","modified":"2026-09-08T08:48:17.728411823Z","updated_at":"2026-11-02T15:28:34.343258Z"}]}}