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I. Basic Information for CVE-2026-39321
Vulnerability Information

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Vulnerability Title
Parse Server has a login timing side-channel reveals user existence
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
通过时间差异性导致的信息暴露
Source: NVD (National Vulnerability Database)
Vulnerability Title
Parse Server 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Parse Server是Parse Platform开源的一个开源后端,可以部署到任何可以运行 Node.js 的基础设施。 Parse Server 9.8.0-alpha.6之前版本和8.6.74之前版本存在安全漏洞,该漏洞源于登录端点响应时间差异,可能导致用户名枚举。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
parse-communityparse-server >= 9.0.0, < 9.8.0-alpha.6 -
II. Public POCs for CVE-2026-39321
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III. Intelligence Information for CVE-2026-39321
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