CVE-2026-42354

Published: May 8, 2026Modified: May 18, 2026

9.8

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitability: 3.9 / Impact: 5.9

Source: 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.

Affected (1)

Products: Sentry: Sentry

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Sentry Sentry	From 21.12.0 to 26.4.1

Related CWEs

Authentication Bypass by Spoofing

This attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks.

References (4)

https://github.com/getsentry/sentry/commit/0c67558ae7fe08738912d4c5233b53ead048da3b

Source: security-advisories@github.com

Patch

https://github.com/getsentry/sentry/pull/113720

Source: security-advisories@github.com

Issue TrackingPatch

https://github.com/getsentry/sentry/releases/tag/26.4.1

Source: security-advisories@github.com

ProductRelease Notes

https://github.com/getsentry/sentry/security/advisories/GHSA-rcmw-7mc7-3rj7

Source: security-advisories@github.com

MitigationVendor Advisory

Timeline

No history available yet.