CVE-2026-30229

Description

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.6 and 9.5.0-alpha.4, the readOnlyMasterKey can call POST /loginAs to obtain a valid session token for any user. This allows a read-only credential to impersonate arbitrary users with full read and write access to their data. Any Parse Server deployment that uses readOnlyMasterKey is affected. This issue has been patched in versions 8.6.6 and 9.5.0-alpha.4.

References

https://github.com/parse-community/parse-server/security/advisories/GHSA-79wj-8rqv-jvp5

https://github.com/parse-community/parse-server/releases/tag/9.5.0-alpha.4

https://github.com/parse-community/parse-server/releases/tag/8.6.6

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3

CVSS v4

EPSS