CVE-2026-63737
mediumpriority · track · 0EPSS 0.005 · 42 %ileEUUSEPSS · scored 2026-10-28
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 4.9–7.1
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (2)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (6)
External citations — patches, advisories, analysis.
- https://github.com/surrealdb/surrealdb/security/advisories/GHSA-jv2j-mqmw-xvv5cnnvd
- https://www.vulncheck.com/advisories/surrealdb-before-denial-of-service-via-deep-operator-chainscnnvd
- https://github.com/surrealdb/surrealdb/security/advisories/GHSA-jv2j-mqmw-xvv5enisa_euvd
- https://www.vulncheck.com/advisories/surrealdb-before-denial-of-service-via-deep-operator-chainsenisa_euvd
- https://github.com/surrealdb/surrealdb/security/advisories/GHSA-jv2j-mqmw-xvv5Vendor AdvisoryMitigationnvd
- https://www.vulncheck.com/advisories/surrealdb-before-denial-of-service-via-deep-operator-chainsThird Party Advisorynvd
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