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Vulnerabilities

Vulnerability · CVE-2026-33163

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js.

Published Mar 18, 2026 · catalog updated Jun 17, 2026 · Parse Server is an

Check if you run it

No confirmed exploitation is on record for CVE-2026-33163. EPSS is 0.52%. Act only if a listed version of Parse Server is an is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Parse Server is an).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High8.2
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.52%
Remediation
Advisory link
Affected products
cpe parseplatform/parse-server

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.6.0-alpha.35 and 8.6.50, when a trigger is registered for a class, the LiveQuery server leaks protected fields and to all subscribers of that class. Fields configured as protected via Class-Level Permissions ( ) are included in LiveQuery event payloads for all event types (create, update, delete, enter, leave). Any user with sufficient CLP permissions to subscribe to the affected class can receive protected field data of other users, including sensitive personal information and OAuth tokens from third-party authentication providers. The vulnerability was caused by a reference detachment bug. When an trigger is registered, the LiveQuery server converts the event object to a for the trigger, then creates a new JSON copy via . The sensitive data filter was applied to the reference, but the unfiltered JSON copy was sent to clients. The fix in versions 9.6.0-alpha.35 and 8.6.50 ensures that the JSON copy is assigned back to the response object before filtering, so the filter operates on the actual data sent to clients. As a workaround, remove all trigger registrations. Without an trigger, the reference detachment does not occur and protected fields are correctly filtered.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe parseplatform/parse-server9.6.0

How to fix CVE-2026-33163

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-33163. EPSS is 0.52%. Act only if a listed version of Parse Server is an is installed.

Which versions are affected?

Compare what you have installed with 9.6.0. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-200: Exposure of Sensitive Information. EPSS 0.52%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Mar 18, 2026 · NIST NVD

    Detected

    Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.6.0-alpha.35 and 8.6.50, when a trigger is registered for a class, the LiveQuery server leaks protected fields and to all subscribers of that class. Fields configured as protected via Class-Level Permissions ( ) are included in LiveQuery event payloads for all event types (create, upd

  2. Jun 17, 2026 · NIST NVD

    Updated

    Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.6.0-alpha.35 and 8.6.50, when a trigger is registered for a class, the LiveQuery server leaks protected fields and to all subscribers of that class. Fields configured as protected via Class-Level Permissions ( ) are included in LiveQuery event payloads for all event types (create, upd

Sources

  • CVE.orgVulnerability recordCVE-2026-33163

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-33163

    30-day exploitation probability 0.5%

    first.org
  • NIST NVDVulnerability recordCVE-2026-33163

    Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.6.0-alpha.35 and 8.6.50, when a trigger is registered for a class, the LiveQuery server leaks protected fields and to al

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.