Critical severity9.1GHSA Advisory· Published May 8, 2026· Updated May 18, 2026
CVE-2026-42354
CVE-2026-42354
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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LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
sentryPyPI | >= 21.12.0, < 26.4.1 | 26.4.1 |
Affected products
3Patches
Vulnerability mechanics
References
6- github.com/getsentry/sentry/commit/0c67558ae7fe08738912d4c5233b53ead048da3bnvdPatchWEB
- github.com/getsentry/sentry/pull/113720nvdIssue TrackingPatchWEB
- github.com/advisories/GHSA-rcmw-7mc7-3rj7ghsaADVISORY
- github.com/getsentry/sentry/security/advisories/GHSA-rcmw-7mc7-3rj7nvdMitigationVendor AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2026-42354ghsaADVISORY
- github.com/getsentry/sentry/releases/tag/26.4.1nvdProductRelease NotesWEB
News mentions
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