CVE-2026-33429 | BDVDB-2026-322334 Detail
parse-communityparse-server
Description#
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.54 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.
Impact#
Per CVSS v4.0: confidentiality impact low, integrity impact none, availability impact none. Attack vector: network.
Weaknesses#
- CWE-203 Observable Discrepancy
References#
- 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
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.