CVE-2026-42354

Critical

Published: 08/05/2026(UTC)Translated: 14/06/2026(UTC)NVD NIST

Summary

In Sentry, from version 21.12.0 to before version 26.4.1, a critical vulnerability was discovered in the SAML SSO implementation. This 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.

Risk Assessment

This vulnerability poses a serious risk of user account takeover, potentially leading to unauthorized access to organizational data and resources.

Recommendation

It is recommended to upgrade Sentry to version 26.4.1 or later to mitigate this vulnerability.

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.