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.
Published: 2026-05-08
Score: 9.1 Critical
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-rcmw-7mc7-3rj7 Sentry's improper authentication on SAML SSO process allows user identity linking
History

Mon, 11 May 2026 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Sat, 09 May 2026 00:45:00 +0000

Type Values Removed Values Added
First Time appeared Getsentry
Getsentry sentry
Vendors & Products Getsentry
Getsentry sentry

Fri, 08 May 2026 23:15:00 +0000

Type Values Removed Values Added
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.
Title Sentry: Improper authentication on SAML SSO process allows user identity linking
Weaknesses CWE-290
References
Metrics cvssV3_1

{'score': 9.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N'}


Subscriptions

Getsentry Sentry
cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-05-11T14:37:55.823Z

Reserved: 2026-04-26T13:26:14.515Z

Link: CVE-2026-42354

cve-icon Vulnrichment

Updated: 2026-05-11T14:37:52.819Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-05-08T23:16:38.513

Modified: 2026-05-13T15:59:12.857

Link: CVE-2026-42354

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-09T00:30:21Z

Weaknesses