CVE-2026-33527
CVE-2026-33527 · Parse Server: Session update endpoint allows overwriting server-generated session fields
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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.
CVSS 5.3 · Medium · EPSS 0.3% · Fix available
- Published
- Updated
Stack: node
Affected products and versions
parse-server
- Versions
- < 8.6.57: Affected
- >= 9.0.0, < 9.6.0-alpha.48: Affected
No fix published
parse-server npm
- Affected ranges
- SEMVER: ≥ 9.0.0, < 9.6.0-alpha.48
Update to 9.6.0-alpha.48
parse-server npm
- Affected ranges
- SEMVER: < 8.6.57
Update to 8.6.57
Original sources
- https://github.com/parse-community/parse-server/security/advisories/GHSA-jc39-686j-wp6q
- https://github.com/parse-community/parse-server/pull/10263
- https://github.com/parse-community/parse-server/pull/10264
- https://github.com/parse-community/parse-server/commit/26b628c8fb3cc79ea955374769eebcff6f8a8a73
- https://github.com/parse-community/parse-server/commit/ea68fc0b22a6056c9675149469ff57817f7cf984
- https://nvd.nist.gov/vuln/detail/CVE-2026-33527