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CVE-2026-52794— Sentry: Inefficient Regular Expression Complexity in sentry

Quick assessment

Affected
getsentry sentry
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

getsentry sentry是getsentry公司的错误监控与日志聚合平台。 Sentry 24.4.0版本至26.5.2之前版本存在资源管理错误漏洞，该漏洞源于事件摄取管道中的正则表达式拒绝服务，可能导致攻击者控制的事件字段消耗过多的CPU时间。

CVSS 7.5 · High EPSS 0.47% · P38

Possible ATT&CK Techniques 1 AI

T1499.002 · Service Exhaustion Flood

Affected Version Matrix 1

VendorProduct Version RangeStatus
getsentry sentry >= 24.4.0, < 26.5.2 affected
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I. Basic Information for CVE-2026-52794

Vulnerability Information
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Vulnerability Title
Sentry: Inefficient Regular Expression Complexity in sentry
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1333
Source: CVE Program / CVE List V5
Vulnerability Title
Sentry 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
getsentry sentry是getsentry公司的错误监控与日志聚合平台。 Sentry 24.4.0版本至26.5.2之前版本存在资源管理错误漏洞，该漏洞源于事件摄取管道中的正则表达式拒绝服务，可能导致攻击者控制的事件字段消耗过多的CPU时间。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
getsentry sentry >= 24.4.0, < 26.5.2 -

II. Public POCs for CVE-2026-52794

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III. Intelligence Information for CVE-2026-52794

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Patches & Fixes for CVE-2026-52794 (1)

Vendor Advisories for CVE-2026-52794 (1)

IV. Related Vulnerabilities

Same product: sentry
Same vendor: getsentry
Same weakness: CWE-1333

V. Comments for CVE-2026-52794

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