CVE-2026-116161
Medium
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.
SeverityMedium
CVSS6.0
Exploit probability—
ProductParse-community Parse-server
PublishedOct 25, 2026
First seenOct 25, 2026
Weakness typeCWE-200Sensitive information exposure
How to fix
Update
- parse-community parse-server9.10.5-alpha.4, 8.6.103 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| parse-community parse-server | 9.0.0 ≤ v < 9.10.5-alpha.4, v < 8.6.103 | 9.10.5-alpha.4, 8.6.103 |
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