All vulnerabilities
CVE-2026-116161GHSA-349r-988w-x3jp

parse-server: Parse Server 9.0.0 before 9.10.5-alpha.4 LiveQuery Information Disclosure via $or Subscriptions

parse-community parse-server
Open in ThreatlineRecord JSON
CVSS
6.0Medium
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)No scoreNo FIRST EPSS score in this snapshot yet
Fixed in9.10.5-alpha.4Also 8.6.103CVE List
Published25 Oct 2026Updated 25 Oct 2026CVE List

What fixes it

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Description

Parse Server before 8.6.103 and 9.0.0 before 9.10.5-alpha.4 contains an information disclosure vulnerability in LiveQuery. Its subscription hash omits constraints next to a $or operator, including the _Session owner filter and beforeSubscribe constraints, so distinct subscriptions are grouped together. Authenticated clients subscribing with $or queries can receive other users' events, including session tokens usable for impersonation.

Text from CVE List

Affected versions 4

  • parse-serveraffected: 9.0.0 before 9.10.5-alpha.4CVE List
  • parse-serverunaffected: 9.10.5-alpha.4CVE List
  • parse-serveraffected: all versions before 8.6.103CVE List
  • parse-serverunaffected: 8.6.103CVE List

References 2