CVE-2026-42354

9.1 CRITICAL
Published: May 08, 2026 Modified: May 18, 2026
View on NVD

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://github.com/getsentry/sentry/pull/113720
Source: security-advisories@github.com
Issue Tracking Patch
https://github.com/getsentry/sentry/releases/tag/26.4.1
Source: security-advisories@github.com
Product Release Notes
https://github.com/getsentry/sentry/security/advisories/GHSA-rcmw-7mc7-3rj7
Source: security-advisories@github.com
Mitigation Vendor Advisory

4 reference(s) from NVD

Quick Stats

CVSS v3 Score
9.1 / 10.0
EPSS (Exploit Probability)
0.0%
2th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

sentry