What is CVE-2026-27197?

CVE-2026-27197 is a critical-severity vulnerability in Getsentry Sentry, classified under Improper Authentication. CVSS score: 9.1/10. Published 2026-02-21.

How severe is CVE-2026-27197?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Auth bypass in Getsentry Sentry

CVE-2026-27197

Sentry is a developer-first error tracking and performance monitoring tool. Versions 21.12.0 through 26.1.0 have a critical vulnerability in its SAML SSO implementation which allows an attacker to take over any user account by using a mal…

Vulnerability class: Broken Authentication

EPSS: 0.001 (18.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

Affected products

Getsentry Sentry — versions >= 21.12.0, < 26.2.0

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

https://github.com/getsentry/sentry/security/advisories/GHSA-ggmg-cqg6-j45g (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-27197?: CVE-2026-27197 is a critical-severity vulnerability in Getsentry Sentry, classified under Improper Authentication. CVSS score: 9.1/10. Published 2026-02-21.
How severe is CVE-2026-27197?: Critical severity. CVSS v3 base score is 9.1 out of 10.