Parse Server before 8.6.93 and 9.0.0 before 9.10.1-alpha.13 does not enforce identity-scoped protectedFields (authenticated, role, or per-user groups) on count queries using the $relatedTo operator, exposing the size of protected Relation fields. An authenticated user who can read the owning object can combine counts with an objectId constraint as a membership oracle to reveal confidential memberships such as private groups or block lists.
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History
Mon, 12 Oct 2026 16:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Parse Server before 8.6.93 and 9.0.0 before 9.10.1-alpha.13 does not enforce identity-scoped protectedFields (authenticated, role, or per-user groups) on count queries using the $relatedTo operator, exposing the size of protected Relation fields. An authenticated user who can read the owning object can combine counts with an objectId constraint as a membership oracle to reveal confidential memberships such as private groups or block lists. | |
| Title | Parse Server before 8.6.93 and 9.0.0 before 9.10.1-alpha.13 protectedFields Bypass via Relation Count Query | |
| First Time appeared |
Parseplatform
Parseplatform parse-server |
|
| Weaknesses | CWE-639 | |
| CPEs | cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Parseplatform
Parseplatform parse-server |
|
| References |
| |
| Metrics |
cvssV3_1
|
Projects
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Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-10-12T16:05:00.257Z
Reserved: 2026-10-12T14:13:39.027Z
Link: CVE-2026-109303
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OpenCVE Enrichment
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Weaknesses