CVE-2026-57481 Parse Server: LiveQuery discloses object data to a subscriber across an ACL read-access change
Parse Server LiveQuery subscribers can view unauthorized object data when ACLs and fields change simultaneously, exposing sensitive information to unauthorized users.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-57481?
CVE-2026-57481 is a low-severity vulnerability in parse-community parse-server, published on 8 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
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.
Weakness: CWE-200
Which versions are affected by CVE-2026-57481?
5 open source packages ship an affected version, including parse-server and parse.
| Package | Affected | Fixed in |
|---|---|---|
parse-server npm | All versions | 8.6.83 |
parse-server npm | All versions | 8.6.83 |
parse-server npm | From 9.0.0 | 9.9.1-alpha.13 |
parse-server npm | From 9.0.0 | 9.9.1-alpha.13 |
parse Bitnami | All versions | 8.6.83, 9.9.1 |
How do I fix CVE-2026-57481?
Upgrade parse-server to a fixed version for your release line: 8.6.83 or 9.9.1-alpha.13.
Is CVE-2026-57481 being exploited?
There is no known exploitation of CVE-2026-57481 in the wild and no public exploit code.
Sources
Also known as BIT-parse-2026-57481, GHSA-97pr-9hgg-3p8r.