{"id":"CVE-2026-31872","state":"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.","publishedAt":"2026-03-11T18:02:57.039Z","updatedAt":"2026-03-12T20:09:15.616Z","severity":{"score":8.7,"label":"High","version":"4.0","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","source":"GitHub_M"},"assigner":"GitHub_M","products":["parse-community parse-server"],"affected":[{"vendor":"parse-community","product":"parse-server","versions":[{"version":">= 9.0.0 < 9.6.0-alpha.6","status":"affected"},{"version":"< 8.6.32","status":"affected"}]}],"references":["https://github.com/parse-community/parse-server/security/advisories/GHSA-r2m8-pxm9-9c4g","https://github.com/parse-community/parse-server/releases/tag/8.6.32","https://github.com/parse-community/parse-server/releases/tag/9.6.0-alpha.6"],"weaknesses":["CWE-284"],"ingestedAt":"2026-10-29T20:11:40.391Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/31xxx/CVE-2026-31872.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-31872","state":"PUBLISHED","datePublished":"2026-03-11T18:02:57.039Z","dateUpdated":"2026-03-12T20:09:15.616Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-03-09T19:02:25.014Z"},"containers":{"cna":{"title":"Parse Server has a protected fields bypass via dot-notation in query and sort","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"parse-community","product":"parse-server","versions":[{"version":">= 9.0.0 < 9.6.0-alpha.6","status":"affected"},{"version":"< 8.6.32","status":"affected"}]}],"references":[{"url":"https://github.com/parse-community/parse-server/security/advisories/GHSA-r2m8-pxm9-9c4g","name":"https://github.com/parse-community/parse-server/security/advisories/GHSA-r2m8-pxm9-9c4g","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/parse-community/parse-server/releases/tag/8.6.32","name":"https://github.com/parse-community/parse-server/releases/tag/8.6.32","tags":["x_refsource_MISC"]},{"url":"https://github.com/parse-community/parse-server/releases/tag/9.6.0-alpha.6","name":"https://github.com/parse-community/parse-server/releases/tag/9.6.0-alpha.6","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":8.7,"baseSeverity":"HIGH","vectorString":"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","version":"4.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-284","lang":"en","description":"CWE-284: Improper Access Control","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-03-11T18:02:57.039Z"},"source":{"advisory":"GHSA-r2m8-pxm9-9c4g","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-12T20:09:09.196392Z","id":"CVE-2026-31872","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-03-12T20:09:15.616Z"}}]}}}