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CVE-2026-116161EUVD-2026-109422GHSA-RV6R-PC2R-PWJ8GHSA-349R-988W-X3JP

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

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 9.10.5-alpha.4, 8.6.103
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: yes
  • Technical impact: partial

Summary

Parse Server, an open-source backend framework, is affected in its LiveQuery real-time subscription feature when clients use $or queries. Authenticated users can receive other users' events, including session tokens that could be used to impersonate those users.

Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.

Read the original 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.

Timeline

  1. CVE published
  2. First seen by cve.now
  3. CISA SSVC assessment

    Exploitation: none · Automatable: yes · Technical impact: partial

  4. Record last updated

Affected versions

  • parse-community parse-server

    From 9.0.0 · fixed in 9.10.5-alpha.4

  • parse-community parse-server

    fixed in 8.6.103

References 2

GitHub · parse-community/parse-server

vulncheck.com