CVE-2026-52794

Sentry: Inefficient Regular Expression Complexity in sentry

HIGH
7.5
CVSS Score
Published: June 24, 2026 at 09:26 PM UTC
Updated: October 25, 2026 at 11:10 PM UTC
2 products affected across 2 vendorsSentrySentry

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Severity
HIGH7.5
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

24.4.0 ≤ v < 26.5.2
Affected range stops below 26.5.2, so it looks safe — our inference, not a vendor statement
Affected range stops below 26.5.2, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (2)

x_refsource_CONFIRMMitigationVendor Advisory
Source: cverecord
https://github.com/getsentry/sentry/security/advisories/GHSA-jjqr-wqg2-p856
x_refsource_MISCIssue TrackingPatch
Source: cverecord
https://github.com/getsentry/sentry/pull/116587

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHGitHub_M
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-1333

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