CVE-2026-52794

HIGH

Sentry: Inefficient Regular Expression Complexity in sentry

Title source: cna
STIX 2.1

Description

Sentry is an error tracking and performance monitoring tool. From 24.4.0 until 26.5.2, a Regular Expression Denial of Service (ReDoS) vulnerability exists in Sentry's event ingestion pipeline, where a regex applied to attacker-controlled fields on incoming events can be made to consume disproportionate CPU time. This vulnerability is fixed in 26.5.2.

References (2)

Core 2
Core References
X_Refsource_Misc x_refsource_misc
https://github.com/getsentry/sentry/pull/116587

Scores

CVSS v3 7.5
EPSS 0.0027
EPSS Percentile 18.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-1333
Status published
Products (2)
getsentry/sentry >= 24.4.0, < 26.5.2
sentry/sentry 24.4.0 - 26.5.2
Published Jun 24, 2026
Tracked Since Jun 25, 2026