CVE-2026-31872

EUVD-2026-11279
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.6.0-alpha.6 and 8.6.32, the protectedFields class-level permission (CLP) can be bypassed using dot-notation in query WHERE clauses and sort parameters. An attacker can use dot-notation to query or sort by sub-fields of a protected field, enabling a binary oracle attack to enumerate protected field values. This affects both MongoDB and PostgreSQL deployments. This vulnerability is fixed in 9.6.0-alpha.6 and 8.6.32.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Affected Products (NVD)
VendorProductVersion
parseplatformparse-server
𝑥
< 8.6.32
parseplatformparse-server
9.0.0 ≤
𝑥
< 9.6.0
parseplatformparse-server
9.6.0:alpha1
parseplatformparse-server
9.6.0:alpha2
parseplatformparse-server
9.6.0:alpha3
parseplatformparse-server
9.6.0:alpha4
parseplatformparse-server
9.6.0:alpha5
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://github.com/parse-community/parse-server/releases/tag/8.6.32
https://github.com/parse-community/parse-server/releases/tag/9.6.0-alpha.6
https://github.com/parse-community/parse-server/security/advisories/GHSA-r2m8-pxm9-9c4g