CVE-2026-39321
Published: Apr 7, 2026
Modified: Apr 7, 2026
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.
| Vendor | Product | Versions |
|---|---|---|
parse-community | parse-server | affected >= 9.0.0, < 9.8.0-alpha.6affected < 8.6.74 |
Weaknesses (CWE)
References
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