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I. Basic Information for CVE-2026-28512
Vulnerability Information

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Vulnerability Title
Pocket ID: OAuth redirect_uri validation bypass via userinfo/host confusion
Source: NVD (National Vulnerability Database)
Vulnerability Description
Pocket ID is an OIDC provider that allows users to authenticate with their passkeys to your services. From 2.0.0 to before 2.4.0, a flaw in callback URL validation allowed crafted redirect_uri values containing URL userinfo (@) to bypass legitimate callback pattern checks. If an attacker can trick a user into opening a malicious authorization link, the authorization code may be redirected to an attacker-controlled host. This vulnerability is fixed in 2.4.0.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
指向未可信站点的URL重定向(开放重定向)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Pocket ID 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Pocket ID是Pocket ID开源的一个支持无密码认证的OIDC身份提供商。 Pocket ID 2.0.0版本至2.4.0之前版本存在输入验证错误漏洞,该漏洞源于回调URL验证存在缺陷,可能导致授权代码重定向至攻击者控制的主机。
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
pocket-idpocket-id >= 2.0.0, < 2.4.0 -
II. Public POCs for CVE-2026-28512
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III. Intelligence Information for CVE-2026-28512
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IV. Related Vulnerabilities
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