Vulnerability in Getsentry Sentry
CVE-2026-42354
Sentry is an error tracking and performance monitoring tool. From version 21.12.0 to before version 26.4.1, a critical vulnerability was discovered in the SAML SSO implementation of Sentry. The vulnerability allows an attacker to take over…
EPSS: 0.000 (1.6th 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, < 26.4.1
- Sentry
Weakness classification (CWE)
References
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Patch, x_refsource_MISC, Issue Tracking)
- security-advisories@github.com (Product, x_refsource_MISC, Release Notes)
- security-advisories@github.com (x_refsource_CONFIRM, Mitigation, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-42354?
- CVE-2026-42354 is a critical-severity vulnerability in Getsentry Sentry, classified under Authentication Bypass by Spoofing. CVSS score: 9.1/10. Published 2026-05-08.
- How severe is CVE-2026-42354?
- Critical severity. CVSS v3 base score is 9.1 out of 10.