SurrealDB before 3.1.5 Denial of Service via deep operator chains
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-674.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA surrealdb (surrealdb) Fixed in 3.1.5
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
surrealdb 3.1.5
4 records Highest priority Priority LOW 4 LOW
Other records, highest priority first
- TI-2026-45326 SurrealDB before 3.1.5 Arbitrary File Read via DEFINE ANALYZERPriority LOW 37
- TI-2026-45325 SurrealDB 3.1.0 before 3.1.5 Field Permission Bypass via TraversalPriority LOW 24
- TI-2026-45331 SurrealDB before 3.1.5 SSRF via JWKS URL RedirectPriority LOW 23
Timeline
- 2026-10-02 Threatist record created from CVE-2026-63737
- 2026-10-03 Alias added: GHSA-q3vg-g3wv-mfgg
References
More Surrealdb vulnerabilities
- TI-2026-45344 SurrealDB before 3.1.0 Session Hijacking via /rpc sessions CVSS 4.0HIGH 8.7
- TI-2024-38452 SurrealDB before 1.1.0 Denial of Service via HTTP Headers CVSS 4.0HIGH 8.7
- TI-2026-45347 SurrealDB before 3.1.0 Denial of Service via JSON Parser CVSS 4.0HIGH 8.7
- TI-2026-45334 SurrealDB before 3.1.0 Denial of Service via malformed RPC use CVSS 4.0HIGH 8.7
- TI-2025-43508 SurrealDB before 2.2.2 SurrealQL Injection via export CVSS 4.0CRITICAL 9.4
- TI-2026-45343 SurrealDB before 3.1.0 Privilege Escalation via RPC Session Race Condition CVSS 4.0CRITICAL 9.2
Sources
- CVE-2026-63737 · CVE Program
- CVE-2026-63737 · NVD
- FIRST EPSS
- GHSA-q3vg-g3wv-mfgg · GitHub Advisory Database · CC BY 4.0
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