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GHSA-hwx8-q9cg-mqmc

MediumCVSS 6.3 / 10
Published Mar 9, 2026·Last modified Mar 16, 2026
Affected Components(0)

No affected components available

Description

Impact

The file metadata endpoint (GET /files/:appId/metadata/:filename) does not enforce beforeFind / afterFind file triggers. When these triggers are used as access-control gates, the metadata endpoint bypasses them entirely, allowing unauthorized access to file metadata.

This affects any deployment that relies on Parse.Cloud.beforeFind(Parse.File, ...) to restrict file access. Only file metadata (user-defined key-value pairs set via addMetadata) is exposed; file content remains protected.

Patches

The metadata handler now runs beforeFind and afterFind triggers and returns HTTP 403 when a trigger denies access.

Workarounds

Disable the metadata endpoint by overriding the route with a middleware that rejects all requests:

// Add before mounting Parse Server
app.get('/parse/files/:appId/metadata/:filename', (req, res) => {
  res.status(403).json({ error: 'Forbidden' });
});

Adjust the path prefix (/parse) to match your mountPath.

References

  • GitHub security advisory: https://github.com/parse-community/parse-server/security/advisories/GHSA-hwx8-q9cg-mqmc
  • Fix Parse Server 9: https://github.com/parse-community/parse-server/releases/tag/9.5.0-alpha.9
  • Fix Parse Server 8: https://github.com/parse-community/parse-server/releases/tag/8.6.9
Risk Scores
Base Score
6.3

The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker does not need any special privileges or access rights. No user interaction is needed for the attacker to exploit this vulnerability.

Threat Intelligence
1.7

Limited exploitation activity has been observed. Close monitoring and planned remediation are recommended.

EPSS
0.29%

The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.

Exploit
Not available

We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.

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