CVE-2026-52794CWE-1333

Sentry: Inefficient Regular Expression Complexity in sentry

High · published June 24, 2026

CVSS v3.1
7.5
EPSS
1%
Percentile
45.0
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00545 · 45.0th percentile
Weakness
CWE-1333 · Inefficient Regular Expression Complexity
Published
2026-06-24T21:26Z
EPSS history
Timeline
  • 24 JUN 21:26Z
    Sentry: Inefficient Regular Expression Complexity in sentry
    cvelistv5