CVE-2026-33429Parse Server: Protected field change detection oracle via LiveQuery watch parameter
Updated under an hour ago ()
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It affects parse-community parse-server and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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Free account, 1 product
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 (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
- Weakness (CWE)
- CWE-203
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- GitHub_M
- NVD analysis
- Analyzed
- Record last updated
- Mar 25, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
parse-community parse-server parse_community:parse_server (from the name) | before 8.6.54; from 9.0.0, < 9.6.0-alpha.43 | CNA record |
parseplatform parse-server parseplatform:parse-server | before 8.6.54; from 9.0.0 before 9.6.0; 9.6.0; 9.6.0; 9.6.0; 9.6.0; 9.6.0; 9.6.0; and 36 more ranges | NVD |
References
- https://github.com/parse-community/parse-server/security/advisories/GHSA-qpc3-fg4j-8hgmx-refsource-confirm, vendor-advisory
- https://github.com/parse-community/parse-server/pull/10253x-refsource-misc, issue-tracking
- https://github.com/parse-community/parse-server/pull/10254x-refsource-misc, issue-tracking
- https://github.com/parse-community/parse-server/commit/0c0a0a5a37ca821d2553119f2cb3be35322eda4bx-refsource-misc, patch
- https://github.com/parse-community/parse-server/commit/c62eacaf38de86913f09240583448360b1cc8e67x-refsource-misc, patch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.