Vulnerability · Published Jul 8, 2026 · Assigned by GitHub_M

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

Low 2.3

In plain English

A low-severity information exposure in parse-server from parse-community. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 45% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 4.0)2.3Low

Exploit odds (30 days)0.5%top 55.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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 packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
npm	parse-server	9.9.1-alpha.13	GHSA-97pr-9hgg-3p8r
npm	parse-server	8.6.83	GHSA-97pr-9hgg-3p8r

Affected products (as reported)

Vendor	Product	Versions
parse-community	parse-server	>= 9.0.0-alpha.1, < 9.9.1-alpha.13< 8.6.83

Weakness: CWE-200 · Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

References

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