What is CVE-2026-26004?

CVE-2026-26004 is a medium-severity vulnerability in Getsentry Sentry, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 6.5/10. Published 2026-03-18.

How severe is CVE-2026-26004?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Auth bypass in Getsentry Sentry

CVE-2026-26004

Sentry is a developer-first error tracking and performance monitoring tool. Versions prior to 26.1.0 have a cross-organization Insecure Direct Object Reference (IDOR) vulnerability in Sentry's GroupEventJsonView endpoint. Version 26.1.0 pa…

Vulnerability class: IDOR (Insecure Direct Object Reference)

EPSS: 0.002 (15.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

Affected products

Getsentry Sentry — versions < 26.1.0
Sentry

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

security-advisories@github.com (x_refsource_CONFIRM, Exploit, Third Party Advisory)
security-advisories@github.com (Patch, x_refsource_MISC, Issue Tracking)
security-advisories@github.com (Patch, x_refsource_MISC)

Frequently asked questions

What is CVE-2026-26004?: CVE-2026-26004 is a medium-severity vulnerability in Getsentry Sentry, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 6.5/10. Published 2026-03-18.
How severe is CVE-2026-26004?: Medium severity. CVSS v3 base score is 6.5 out of 10.