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Vulnerabilities CVE-2026-63737

CVE-2026-63737

High
Open
TLP:CLEAR

SurrealDB before 3.1.5 Denial of Service via deep operator chains

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Description

SurrealDB versions before 3.1.5 contain a denial of service vulnerability where authenticated users can crash the server with queries containing long chains of operators. Attackers can submit queries with tens of thousands of chained operators that create unbounded expression trees, causing stack overflow during query processing and aborting the entire process.

Details

CVSS Score
7.1
EPSS Score
0.35%

27.5th percentile

CVSS Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Confidence
90%
Published
Jul 20, 2026
Last Modified
Jul 28, 2026
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