CVE-2026-34784: high-severity vulnerability in parse-community parse-server
Parse Server: Streaming file download bypasses afterFind file trigger authorization
Published
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.2epss 0.4%
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.71 and 9.7.1-alpha.1, file downloads via HTTP Range requests bypass the afterFind(Parse.File) trigger and its validators on storage adapters that support streaming (e.g. the default GridFS adapter). This allows access to files that should be protected by afterFind trigger authorization logic or built-in validators such as requireUser. This issue has been patched in versions 8.6.71 and 9.7.1-alpha.1.
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Affected products
parse-community · parse-serverRelated CVEs — parse-community parse-server
In the same product, most dangerous first.
CVE-2022-24760CRITICALCommand Injection in Parse serverEPSS 49.4%CVE-2022-39396CRITICALParse Server vulnerable to Remote Code Execution via prototype pollution in MongoDB BSON parserEPSS 38.7%CVE-2024-39309CRITICALZDI-CAN-23894: Parse Server literalizeRegexPart SQL Injection Authentication Bypass VulnerabilityEPSS 20.2%CVE-2023-36475CRITICALParse Server vulnerable to remote code execution via MongoDB BSON parser through prototype pollutionEPSS 3.2%CVE-2021-39187HIGHCrash server with query parameterEPSS 1.8%CVE-2026-30965CRITICALParse Server session token exfiltration via `redirectClassNameForKey` query parameterEPSS 1.4%
References
https://github.com/parse-community/parse-server/commit/053109b3ee71815bc39ed84116c108ff9edbf337https://github.com/parse-community/parse-server/commit/a0b0c69fc44f87f80d793d257344e7dcbf676e22https://github.com/parse-community/parse-server/pull/10361https://github.com/parse-community/parse-server/pull/10362https://github.com/parse-community/parse-server/security/advisories/GHSA-hpm8-9qx6-jvwv