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 products
sentry: sentry
References4
- github.com/getsentry/sentry/security/advisories/GHSA-rcmw-7mc7-… MitigationVendor Advisory
- github.com/getsentry/sentry/commit/0c67558ae7fe08738912d4c5233b… Patch
- github.com/getsentry/sentry/pull/113720 Issue TrackingPatch
- github.com/getsentry/sentry/releases/tag/26.4.1 ProductRelease Notes
Metrics
- CVSS 3.1
-
9.8
CRITICAL
Score source: NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 1% percentile: 50 · as of 13 November 2026
- CWE
- CWE-290
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.