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.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements Present

User Interaction Passive

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00364.

Exploitation none

Automatable no

Technical Impact total

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
getsentry sentry affected
Version Status Constraints
>= 26.5.0, < 26.7.2 affected —

No data.

No data.

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No data.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/getsentry/self-hosted/releases/tag/26.7.2 cve-icon cve-icon
https://github.com/getsentry/sentry/commit/9c982d4bcb81c93e2db552084bcbb45cdd34bdd3 cve-icon cve-icon
https://github.com/getsentry/sentry/commit/ec963de4ec8c7f340f286c6f613e55458a9e5ddf cve-icon cve-icon
https://github.com/getsentry/sentry/pull/120467 cve-icon cve-icon
https://github.com/getsentry/sentry/pull/120702 cve-icon cve-icon
https://github.com/getsentry/sentry/releases/tag/26.7.2 cve-icon cve-icon
https://github.com/getsentry/sentry/security/advisories/GHSA-w699-8wff-fqxw cve-icon cve-icon
History

Thu, 15 Oct 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

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'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-10-15T14:23:19.741Z

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

Link: CVE-2026-102899

cve-icon Vulnrichment

Updated: 2026-10-15T14:23:14.033Z

cve-icon NVD

Status : Received

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

Modified: 2026-10-15T15:17:20.020

Link: CVE-2026-102899

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-15T13:45:19Z

Weaknesses