{"id":"BIT-parse-2026-35200","summary":"Parse Server has a file upload Content-Type override via extension mismatch","details":"Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 8.6.73 and 9.7.1, a file can be uploaded with a filename extension that passes the file extension allowlist (e.g., .txt) but with a Content-Type header that differs from the extension (e.g., text/html). The Content-Type is passed to the storage adapter without consistency validation. Storage adapters that store and serve the provided Content-Type (such as S3 or GCS) serve the file with the mismatched Content-Type. The default GridFS adapter is not affected because it derives Content-Type from the filename at serving time. This vulnerability is fixed in 8.6.73 and 9.7.1.","aliases":["CVE-2026-35200","GHSA-vr5f-2r24-w5hc"],"modified":"2026-09-10T16:01:44.894788144Z","published":"2026-04-08T14:51:33.993Z","database_specific":{"severity":"Medium","cpes":["cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:node.js:*:*"]},"references":[{"type":"FIX","url":"https://github.com/parse-community/parse-server/pull/10383"},{"type":"FIX","url":"https://github.com/parse-community/parse-server/pull/10384"},{"type":"ADVISORY","url":"https://github.com/parse-community/parse-server/security/advisories/GHSA-vr5f-2r24-w5hc"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-35200"}],"affected":[{"package":{"name":"parse","ecosystem":"Bitnami","purl":"pkg:bitnami/parse"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"8.6.73"},{"introduced":"9.0.0"},{"fixed":"9.7.1"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/parse/BIT-parse-2026-35200.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"}]}],"schema_version":"1.9.0"}