Medium severity · published Mar 17, 2026
CVE-2026-26004
Sentry allows unauthorized access to event data across organizational boundaries
6.5
CVSS
0.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 16% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SE
sentry · getsentry
< 26.1.0 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-26004
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-26004
Patch
https://github.com/getsentry/sentry/commit/45bc78fd57514a04eb62e73dd1eeb3ca2d723997
Issue Tracking
https://github.com/getsentry/sentry/pull/105601
Exploit
https://securitylab.github.com/advisories/GHSL-2025-130_Sentry/
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