GHSA-5hmj-jcgp-6hff

Source

https://github.com/advisories/GHSA-5hmj-jcgp-6hff

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-5hmj-jcgp-6hff/GHSA-5hmj-jcgp-6hff.json

JSON Data

https://api.test.osv.dev/v1/vulns/GHSA-5hmj-jcgp-6hff

Aliases

CVE-2026-33163

Published

2026-03-18T19:49:27Z

Modified

2026-03-18T20:03:53.596519Z

Severity

8.2 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N CVSS Calculator

Summary

Parse Server leaks protected fields via LiveQuery afterEvent trigger

Details

Impact

When a Parse.Cloud.afterLiveQueryEvent trigger is registered for a class, the LiveQuery server leaks protected fields and authData to all subscribers of that class. Fields configured as protected via Class-Level Permissions (protectedFields) 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.

Patches

The vulnerability was caused by a reference detachment bug. When an afterEvent trigger is registered, the LiveQuery server converts the event object to a Parse.Object for the trigger, then creates a new JSON copy via toJSONwithObjects(). The sensitive data filter was applied to the Parse.Object reference, but the unfiltered JSON copy was sent to clients. The fix 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.

Workarounds

Remove all Parse.Cloud.afterLiveQueryEvent trigger registrations. Without an afterEvent trigger, the reference detachment does not occur and protected fields are correctly filtered.

Database specific

{
    "nvd_published_at": null,
    "github_reviewed_at": "2026-03-18T19:49:27Z",
    "github_reviewed": true,
    "severity": "HIGH",
    "cwe_ids": [
        "CWE-200"
    ]
}

References

Affected packages

npm / parse-server

Package

Name: parse-server; View open source insights on deps.dev
Purl: pkg:npm/parse-server

Affected ranges

Type: SEMVER
Events: Introduced

9.0.0

Fixed

9.6.0-alpha.35

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-5hmj-jcgp-6hff/GHSA-5hmj-jcgp-6hff.json"

npm / parse-server

Package

Name: parse-server; View open source insights on deps.dev
Purl: pkg:npm/parse-server

Affected ranges

Type: SEMVER
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

8.6.50

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-5hmj-jcgp-6hff/GHSA-5hmj-jcgp-6hff.json"