🛡️ CVE-2026-42354
🔴 CVSS 9.5 — Critical ✅ No Known Exploit CWE-290 NVD
9.5
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

Details

Severity CRITICAL
CVSS Score 9.5
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CWE CWE-290
Public Exploit ✅ No
Source NVD
Published 2026-04-30
Updated 2026-06-15
Modified 2026-05-13
Fix URL N/A

Affected Packages

Software From version Fixed in
sentry 21.12.0 26.4.1
unknown

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