CVE-2026-31872

Summary

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.

Affected Software

Weaknesses

• CWE-284: CWE-284: Improper Access Control

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: no
  • Technical Impact: partial

References

• https://github.com/parse-community/parse-server/security/advisories/GHSA-r2m8-pxm9-9c4g
• 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

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