What’s Vulnerable › Vulnerabilities

CVE-2026-26004: Sentry allows unauthorized access to event data across organizational boundaries

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-03-18 · updated 2026-06-17
• Weakness: CWE-639

Description

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 patches the issue.

Affected products

• getsentry sentry: before 26.1.0 — fixed in 26.1.0

How to fix

Upgrade to a fixed version: getsentry sentry 26.1.0. Check the vendor advisory for mitigations.

References

• https://github.com/getsentry/sentry/commit/45bc78fd57514a04eb62e73dd1eeb3ca2d723997
• https://github.com/getsentry/sentry/pull/105601
• https://securitylab.github.com/advisories/GHSL-2025-130_Sentry/

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