CVE-2026-57481

Parse Server: LiveQuery discloses object data to a subscriber across an ACL read-access change

Description

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.9.1-alpha.13 and 8.6.83, a LiveQuery subscriber could receive object field values they were not authorized to read when a single save changed both an object field and the subscriber's ACL read access, because leave and enter events included the wrong object state. This issue is fixed in versions 9.9.1-alpha.13 and 8.6.83.

Scores

Weaknesses (CWE)

• CWE-200

Advisories

• GHSA-97pr-9hgg-3p8r — parse-server: LiveQuery discloses object data to a subscriber across an ACL read-access change

European references

• ENISA EUVD · EUVD-2026-42422
• GCVE · GCVE-0-2026-57481

Affected products

References

• https://github.com/parse-community/parse-server/security/advisories/GHSA-97pr-9hgg-3p8r
• https://github.com/parse-community/parse-server/pull/10515
• https://github.com/parse-community/parse-server/pull/10516
• https://github.com/parse-community/parse-server/commit/c9b24cecfee76d8563019adaacbcbd78471dc41e
• https://github.com/parse-community/parse-server/commit/e9c85dfe40a866a55ebae3b6ae56285ac0a22e64
• https://github.com/parse-community/parse-server/releases/tag/8.6.83
• https://github.com/parse-community/parse-server/releases/tag/9.9.1-alpha.13

Sources