CVE-2026-33429
CVE-2026-33429 · Parse Server: Protected field change detection oracle via LiveQuery watch parameter
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 8.6.54 and 9.6.0-alpha.43, an attacker can subscribe to LiveQuery with a watch parameter targeting a protected field. Although the protected field value is properly stripped from event payloads, the presence or absence of update events reveals whether the protected field changed, creating a binary oracle. For boolean protected fields, the timing of change events is equivalent to knowing the field value. This issue has been patched in versions 8.6.54 and 9.6.0-alpha.43.
CVSS 6.3 · Medium · EPSS 0.4% · Fix available
- Published
- Updated
Stack: node
Affected products and versions
parse-server
- Versions
- < 8.6.54: Affected
- >= 9.0.0, < 9.6.0-alpha.43: Affected
No fix published
parse-server npm
- Affected ranges
- SEMVER: ≥ 9.0.0, < 9.6.0-alpha.43
Update to 9.6.0-alpha.43
parse-server npm
- Affected ranges
- SEMVER: < 8.6.54
Update to 8.6.54
Original sources
- https://github.com/parse-community/parse-server/security/advisories/GHSA-qpc3-fg4j-8hgm
- https://github.com/parse-community/parse-server/pull/10253
- https://github.com/parse-community/parse-server/pull/10254
- https://github.com/parse-community/parse-server/commit/0c0a0a5a37ca821d2553119f2cb3be35322eda4b
- https://github.com/parse-community/parse-server/commit/c62eacaf38de86913f09240583448360b1cc8e67
- https://nvd.nist.gov/vuln/detail/CVE-2026-33429