CVE-2026-33527

Parse Server is affected; prior to 8.6.57 and 9.6.0-alpha.48, an authenticated user could overwrite server-generated session fields (expiresAt, createdWith) on their own session via the REST API, bypassing the configured session lifetime and making a session effectively permanent. The issue has b...

CVE-2026-33527 Parse Server: Session update endpoint allows overwriting server-generated session fields

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...