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I. Basic Information for CVE-2026-39322
Vulnerability Information

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Vulnerability Title
PolarLearn: Any password authenticates banned accounts and grants API access
Source: NVD (National Vulnerability Database)
Vulnerability Description
PolarLearn is a free and open-source learning program. In 0-PRERELEASE-15 and earlier, POST /api/v1/auth/sign-in creates a valid session for banned accounts before verifying the supplied password. That session is then accepted across authenticated /api routes, enabling account data access and authenticated actions as the banned user.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
认证机制不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
PolarLearn 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
PolarLearn是PolarNL开源的一个在线学习平台。 PolarLearn 0-PRERELEASE-15及之前版本存在授权问题漏洞,该漏洞源于为已禁用账户创建有效会话,可能导致未经授权的访问。
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
polarnlPolarLearn <= v0-PRERELEASE-15 -
II. Public POCs for CVE-2026-39322
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III. Intelligence Information for CVE-2026-39322
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IV. Related Vulnerabilities
V. Comments for CVE-2026-39322

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