Node.js CVE-2026-30228
MEDIUM
GHSA-xfh7-phr7-gr2x
Severity by source
AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
Primary rating from GitHub Advisory · only source for this CVE.
CVSS VectorGitHub Advisory
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
Lifecycle Timeline
3DescriptionGitHub Advisory
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.5 and 9.5.0-alpha.3, the readOnlyMasterKey can be used to create and delete files via the Files API (POST /files/:filename, DELETE /files/:filename). This bypasses the read-only restriction which violates the access scope of the readOnlyMasterKey. Any Parse Server deployment that uses readOnlyMasterKey and exposes the Files API is affected. An attacker with access to the readOnlyMasterKey can upload arbitrary files or delete existing files. This issue has been patched in versions 8.6.5 and 9.5.0-alpha.3.
AnalysisAI
Parse Server versions before 8.6.5 and 9.5.0-alpha.3 allow the readOnlyMasterKey to perform write and delete operations on files, violating the intended read-only access restriction. An authenticated attacker with the readOnlyMasterKey can upload arbitrary files or delete existing files via the Files API on affected deployments. No patch is currently available for this medium-severity vulnerability that impacts organizations using Parse Server with exposed file endpoints.
Technical ContextAI
Classified as CWE-863 (Incorrect Authorization). Affects Parse-Server. Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.5 and 9.5.0-alpha.3, the readOnlyMasterKey can be used to create and delete files via the Files API (POST /files/:filename, DELETE /files/:filename). This bypasses the read-only restriction which violates the access scope of the readOnlyMasterKey. Any Parse Server deployment that uses readOnlyMasterKey and exposes the Files API is affected. An attacker with access to the
RemediationAI
Monitor vendor advisories for a patch. Restrict network access to the affected service where possible.
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Same weakness CWE-863 – Incorrect Authorization
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External POC / Exploit Code
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