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CVE-2026-109303

Parse Server before 8.6.93 and 9.0.0 before 9.10.1-alpha.13 protectedFields Bypass via Relation Count Query PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
parse-community / parse-serveraffected 9.0.0 before 9.10.1-alpha.13; unaffected 9.10.1-alpha.13
parse-community / parse-serveraffected 0 before 8.6.93; unaffected 8.6.93

CWE

CWE-639

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.