CVE-2026-42354— Sentry: Improper authentication on SAML SSO process allows user identity linking
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I. Basic Information for CVE-2026-42354
Vulnerability Information
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Vulnerability Title
Sentry: Improper authentication on SAML SSO process allows user identity linking
Source: NVD (National Vulnerability Database)
Vulnerability Description
Sentry is an error tracking and performance monitoring tool. From version 21.12.0 to before version 26.4.1, a critical vulnerability was discovered in the SAML SSO implementation of Sentry. The vulnerability allows an attacker to take over any user account by using a malicious SAML Identity Provider and another organization on the same Sentry instance. The victim email address must be known in order to exploit this vulnerability. This issue has been patched in version 26.4.1.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
使用欺骗进行的认证绕过
Source: NVD (National Vulnerability Database)
Vulnerability Title
Sentry 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Sentry是Sentry开源的一个面向开发人员的错误跟踪和性能监控平台。 Sentry 21.12.0版本至26.4.1之前版本存在安全漏洞，该漏洞源于SAML SSO实现问题，可能导致攻击者通过恶意SAML身份提供商接管用户账户。
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
II. Public POCs for CVE-2026-42354
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V. Comments for CVE-2026-42354
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