What’s Vulnerable › Vulnerabilities

CVE-2026-57481: Parse Server: LiveQuery discloses object data to a subscriber across an ACL read-access change

• Severity: low (CVSS 2.3 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-08 · updated 2026-10-25
• Weakness: CWE-200

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.

Affected products

• parse-community parse-server: from 9.0.0-alpha.1, < 9.9.1-alpha.13; before 8.6.83

References

• 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/pull/10515
• https://github.com/parse-community/parse-server/pull/10516
• 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
• https://github.com/parse-community/parse-server/security/advisories/GHSA-97pr-9hgg-3p8r

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