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CVE PROGRAM SOURCE RECORD5.3 Medium

CVE-2026-33527

Parse Server: Session update endpoint allows overwriting server-generated session fields

Description

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.57 and 9.6.0-alpha.48, an authenticated user can overwrite server-generated session fields such as expiresAt and createdWith when updating their own session via the REST API. This allows bypassing the server's configured session lifetime policy, making a session effectively permanent. This issue has been patched in versions 8.6.57 and 9.6.0-alpha.48.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

parse-community parse-server

  • < 8.6.57affected
  • >= 9.0.0, < 9.6.0-alpha.48affected

References