{"id":"BIT-parse-2026-30972","summary":"Parse Server has a rate limit bypass via batch request endpoint","details":"Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior o 9.5.2 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 and 8.6.23.","aliases":["CVE-2026-30972","GHSA-775h-3xrc-c228"],"modified":"2026-03-20T10:00:23.520253Z","published":"2026-03-12T14:48:14.900Z","database_specific":{"cpes":["cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:node.js:*:*"],"severity":"Medium"},"references":[{"type":"WEB","url":"https://github.com/parse-community/parse-server/releases/tag/8.6.23"},{"type":"WEB","url":"https://github.com/parse-community/parse-server/releases/tag/9.5.2-alpha.10"},{"type":"WEB","url":"https://github.com/parse-community/parse-server/security/advisories/GHSA-775h-3xrc-c228"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-30972"}],"affected":[{"package":{"name":"parse","ecosystem":"Bitnami","purl":"pkg:bitnami/parse"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"8.6.23"},{"introduced":"9.0.0"},{"fixed":"9.5.2"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/parse/BIT-parse-2026-30972.json"},"severity":[{"type":"CVSS_V4","score":"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/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"}]}],"schema_version":"1.7.5"}