Description

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.8.0-alpha.6 and 8.6.74, he login endpoint response time differs measurably depending on whether the submitted username or email exists in the database. When a user is not found, the server responds immediately. When a user exists but the password is wrong, a bcrypt comparison runs first, adding significant latency. This timing difference allows an unauthenticated attacker to enumerate valid usernames. This vulnerability is fixed in 9.8.0-alpha.6 and 8.6.74.

INFO

Published Date :

2026-04-07T18:11:10.514Z

Last Modified :

2026-04-07T19:58:57.199Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2026-39321 vulnerability.

Vendors Products
Parse Community
  • Parse Server
Parseplatform
  • Parse-server
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-39321.

URL Resource
https://github.com/parse-community/parse-server/pull/10398 cve-icon cve-icon
https://github.com/parse-community/parse-server/pull/10399 cve-icon cve-icon
https://github.com/parse-community/parse-server/security/advisories/GHSA-mmpq-5hcv-hf2v cve-icon cve-icon
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CVSS Vulnerability Scoring System

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Detailed values of each vector for above chart.
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