GHSA-qpc3-fg4j-8hgm

Suggest an improvement
Source
https://github.com/advisories/GHSA-qpc3-fg4j-8hgm
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-qpc3-fg4j-8hgm/GHSA-qpc3-fg4j-8hgm.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-qpc3-fg4j-8hgm
Aliases
Published
2026-03-20T20:45:40Z
Modified
2026-03-30T14:07:40.785362Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N CVSS Calculator
  • 6.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
Parse Server has a protected field change detection oracle via LiveQuery watch parameter
Details

Impact

An attacker can subscribe to LiveQuery with a watch parameter targeting a protected field. Although the protected field value is properly stripped from event payloads, the presence or absence of update events reveals whether the protected field changed, creating a binary oracle. For boolean protected fields, the timing of change events is equivalent to knowing the field value.

Patches

The watch parameter is now validated against protected fields at subscription time, mirroring the existing validation for the where clause. Subscriptions that include protected fields in watch are rejected with a permission error. Master key connections are exempt.

Workarounds

None.

Database specific
{
    "github_reviewed": true,
    "github_reviewed_at": "2026-03-20T20:45:40Z",
    "cwe_ids": [
        "CWE-203"
    ],
    "severity": "MODERATE",
    "nvd_published_at": "2026-03-24T19:16:53Z"
}
References

Affected packages

npm / parse-server

Package

Affected ranges

Type
SEMVER
Events
Introduced
9.0.0
Fixed
9.6.0-alpha.43

Database specific

source
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-qpc3-fg4j-8hgm/GHSA-qpc3-fg4j-8hgm.json"

npm / parse-server

Package

Affected ranges

Type
SEMVER
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
8.6.54

Database specific

source
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-qpc3-fg4j-8hgm/GHSA-qpc3-fg4j-8hgm.json"