---
title: "CVE-2026-102899: Sentry - Authentication Bypass"
description: "Sentry 26.5.0 to 26.7.2 contains an authentication bypass caused by SAML SSO identity-linking flow allowing attacker-controlled SAML IdP to link attacker identity to victim account, letting attackers take control of victim accounts, exploit requires victim to open malicious URL with permissive cookie settings."
url: https://panop.io/threat-heartbeat/CVE-2026-102899/
---

# CVE-2026-102899 Sentry - Authentication Bypass

Sentry 26.5.0 to 26.7.2 contains an authentication bypass caused by SAML SSO identity-linking flow allowing attacker-controlled SAML IdP to link attacker identity to victim account, letting attackers take control of victim accounts, exploit requires victim to open malicious URL with permissive cookie settings.

CVSS base score 7.6 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-102899)

## Details

Type

Authentication Bypass

Impact

Broken Authentication

CVSS 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Published

14 October 2026

Updated

15 October 2026

Weakness

[CWE-287](https://cwe.mitre.org/data/definitions/287.html)

## Vendor fix

Update to version 26.7.2 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-102899](https://nvd.nist.gov/vuln/detail/CVE-2026-102899)
- [https://github.com/getsentry/sentry/commit/ec963de4ec8c7f340f286c6f613e55458a9e5ddf](https://github.com/getsentry/sentry/commit/ec963de4ec8c7f340f286c6f613e55458a9e5ddf)
- [https://github.com/getsentry/sentry/pull/120467](https://github.com/getsentry/sentry/pull/120467)
- [https://github.com/getsentry/sentry/pull/120702](https://github.com/getsentry/sentry/pull/120702)
- [https://github.com/getsentry/sentry/releases/tag/26.7.2](https://github.com/getsentry/sentry/releases/tag/26.7.2)
- [https://github.com/getsentry/sentry/security/advisories/GHSA-w699-8wff-fqxw](https://github.com/getsentry/sentry/security/advisories/GHSA-w699-8wff-fqxw)
- [https://github.com/getsentry/self-hosted/releases/tag/26.7.2](https://github.com/getsentry/self-hosted/releases/tag/26.7.2)
- [https://github.com/getsentry/sentry/commit/9c982d4bcb81c93e2db552084bcbb45cdd34bdd3](https://github.com/getsentry/sentry/commit/9c982d4bcb81c93e2db552084bcbb45cdd34bdd3)

[← All CVEs](https://panop.io/threat-heartbeat/)

## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

[Book a demo](https://panop.io/demo)