SB2026042341 - Improper Authentication in sentry
Published: April 23, 2026
Security Bulletin ID
SB2026042341
CSH Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper Authentication (CVE-ID: CVE-2026-27197)
The vulnerability allows a remote attacker to take over any user account.
The vulnerability exists due to improper authentication in the SAML SSO process when linking user identities through a malicious SAML identity provider in another organization on the same Sentry instance. A remote attacker can use a malicious SAML identity provider to link a victim's known email address to take over any user account.
For self-hosted deployments, exploitation requires a multi-organization instance and access to modify SSO settings for another organization.
Remediation
Install update from vendor's website.