{"id":"CVE-2026-30972","state":"PUBLISHED","title":"Parse Server has a rate limit bypass via batch request endpoint","description":"Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior o 9.5.2-alpha.10 and 8.6.23, Parse Server's rate limiting middleware is applied at the Express middleware layer, but the batch request endpoint (/batch) processes sub-requests internally by routing them directly through the Promise router, bypassing Express middleware including rate limiting. An attacker can bundle multiple requests targeting a rate-limited endpoint into a single batch request to circumvent the configured rate limit. Any Parse Server deployment that relies on the built-in rate limiting feature is affected. This vulnerability is fixed in 9.5.2-alpha.10 and 8.6.23.","publishedAt":"2026-03-10T20:48:47.349Z","updatedAt":"2026-03-11T16:00:44.344Z","severity":{"score":6.9,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:L","source":"GitHub_M"},"assigner":"GitHub_M","products":["parse-community parse-server"],"affected":[{"vendor":"parse-community","product":"parse-server","versions":[{"version":">= 9.0.0 < 9.5.2-alpha.10","status":"affected"},{"version":"< 8.6.23","status":"affected"}]}],"references":["https://github.com/parse-community/parse-server/security/advisories/GHSA-775h-3xrc-c228","https://github.com/parse-community/parse-server/releases/tag/8.6.23","https://github.com/parse-community/parse-server/releases/tag/9.5.2-alpha.10"],"weaknesses":["CWE-799"],"ingestedAt":"2026-10-29T20:11:31.369Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/30xxx/CVE-2026-30972.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-30972","state":"PUBLISHED","datePublished":"2026-03-10T20:48:47.349Z","dateUpdated":"2026-03-11T16:00:44.344Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-03-07T17:53:48.815Z"},"containers":{"cna":{"title":"Parse Server has a rate limit bypass via batch request endpoint","descriptions":[{"lang":"en","value":"Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior o 9.5.2-alpha.10 and 8.6.23, Parse Server's rate limiting middleware is applied at the Express middleware layer, but the batch request endpoint (/batch) processes sub-requests internally by routing them directly through the Promise router, bypassing Express middleware including rate limiting. An attacker can bundle multiple requests targeting a rate-limited endpoint into a single batch request to circumvent the configured rate limit. Any Parse Server deployment that relies on the built-in rate limiting feature is affected. This vulnerability is fixed in 9.5.2-alpha.10 and 8.6.23."}],"affected":[{"vendor":"parse-community","product":"parse-server","versions":[{"version":">= 9.0.0 < 9.5.2-alpha.10","status":"affected"},{"version":"< 8.6.23","status":"affected"}]}],"references":[{"url":"https://github.com/parse-community/parse-server/security/advisories/GHSA-775h-3xrc-c228","name":"https://github.com/parse-community/parse-server/security/advisories/GHSA-775h-3xrc-c228","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/parse-community/parse-server/releases/tag/8.6.23","name":"https://github.com/parse-community/parse-server/releases/tag/8.6.23","tags":["x_refsource_MISC"]},{"url":"https://github.com/parse-community/parse-server/releases/tag/9.5.2-alpha.10","name":"https://github.com/parse-community/parse-server/releases/tag/9.5.2-alpha.10","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"LOW","baseScore":6.9,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:L","version":"4.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-799","lang":"en","description":"CWE-799: Improper Control of Interaction Frequency","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-03-10T20:48:47.349Z"},"source":{"advisory":"GHSA-775h-3xrc-c228","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-11T15:53:44.590413Z","id":"CVE-2026-30972","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-03-11T16:00:44.344Z"}}]}}}