SB2026042341 - Improper Authentication in sentry

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Main Vulnerability Database SB2026042341

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

High 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Improper Authentication (CVE-ID: CVE-2026-27197)

CWE-ID: CWE-287 - Improper Authentication

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Amber


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.

References