Description
Sentry is an application monitoring and error tracking platform. From 26.5.0 until 26.7.2, the SAML SSO identity-linking flow allows an attacker who controls a SAML identity provider to socially engineer an authenticated user into opening a malicious URL, link the attacker's identity to the victim's Sentry account, and take control of that account. The attack requires a browser that accepts the cross-site cookie context, including Firefox with SameSite=None cookies or Chromium with third-party cookies enabled. Sentry SaaS received the remediation on July 27, 2026, and self-hosted Sentry is fixed in version 26.7.2.
Published: 2026-10-14
Score: 7.6 High
EPSS: n/a
KEV: No
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Remediation

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History

Wed, 14 Oct 2026 19:15:00 +0000

Type Values Removed Values Added
Description Sentry is an application monitoring and error tracking platform. From 26.5.0 until 26.7.2, the SAML SSO identity-linking flow allows an attacker who controls a SAML identity provider to socially engineer an authenticated user into opening a malicious URL, link the attacker's identity to the victim's Sentry account, and take control of that account. The attack requires a browser that accepts the cross-site cookie context, including Firefox with SameSite=None cookies or Chromium with third-party cookies enabled. Sentry SaaS received the remediation on July 27, 2026, and self-hosted Sentry is fixed in version 26.7.2.
Title Sentry: Improper authentication on SAML SSO process allows user identity linking
Weaknesses CWE-287
References
Metrics cvssV4_0

{'score': 7.6, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N'}


Subscriptions

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-10-14T18:57:50.768Z

Reserved: 2026-09-29T17:34:42.743Z

Link: CVE-2026-102899

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-14T19:17:06.170

Modified: 2026-10-14T19:17:06.170

Link: CVE-2026-102899

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses