CVE Feed

    Dashboard / CVE / CVE-2026-39321

    CVE-2026-39321

    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.

    Published:Apr 7, 2026
    Last Modified:Apr 15, 2026
    EPS:Apr 7, 2026
    EPSS Score:0.00045
    CVSS Score:3.7

    Affected Products

    Vendor
    Parse Community
    Product
    Parse Server
    Vendor
    Parseplatform
    Product
    Parse-server

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-208 Observable Timing Discrepancy

    Related CVEs

    CVE-2026-87806 (CVSS 9.1) — Parse Server versions <= 8.6.87 and >= 9.0.0 < 9.10.1-alpha.7 contain an authentication bypass in the built-in…
    CVE-2026-66009 (CVSS 6.3) — Parse Server versions >= 9.0.0 before 9.10.0-alpha.5 and >= 8.2.2 before 8.6.86 return GraphQL validation erro…
    CVE-2026-66008 (CVSS 6.3) — Parse Server versions >= 9.0.0 before 9.10.0-alpha.6 and >= 8.2.2 before 8.6.87 disclose Pointer and Relation …
    CVE-2026-64627 (CVSS 6.9) — Parse Server versions >= 9.0.0 before 9.10.0-alpha.4 and versions before 8.6.85 contain a schema disclosure vu…
    CVE-2026-61448 (CVSS 2.1) — Parse Server is affected by a stored cross-site scripting (XSS) vulnerability in versions >= 9.0.0, < 9.10.0-a…
    CVE-2026-57481 (CVSS 2.3) — Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior …
    CVE-2026-57480 (CVSS 8.7) — Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior …
    CVE-2026-55778 (CVSS 2.1) — Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior …
    CVE-2026-53726 (CVSS 6.9) — Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior …
    CVE-2026-53725 (CVSS 5.9) — Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. From v…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High