CVE-2026-42354
CriticalCVSS 9.1Exploitation Probability (EPSS)
Low risk46th percentile - higher than 46% of all known CVEs
Summary
Sentry, an error tracking and performance monitoring tool, from version 21.12.0 to before 26.4.1 contains a critical vulnerability in the SAML SSO implementation. An attacker can take over any user account by using a malicious SAML Identity Provider and another organization on the same Sentry instance. The victim's email address must be known. The issue is patched in version 26.4.1.
Risk Assessment
An attacker could take over any Sentry user account, potentially leading to unauthorized access to sensitive error and performance data.
Recommendation
Immediately update Sentry to version 26.4.1 or later.
Original NVD description (English source)
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.