SurrealDB before 3.1.0 Denial of Service via JSON Parser
Key facts
- Attack vector
- Network
- Privileges required
- None
- 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 and GitHub. Impact type from CWE-674.
Summary
SurrealDB before 3.1.0 fails to enforce the configured recursion depth limit in the value and JSON parser when processing nested braces, brackets, or parentheses. Unauthenticated attackers can send deeply nested JSON payloads to the WebSocket /rpc endpoint to exhaust server memory and crash the process.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| surrealdb | surrealdb | before 3.1.0 | 3.1.0 | Patch available | CNA |
| — | surrealdb (crates.io) | before 3.1.0 | 3.1.0 | Patch available | GHSA-q729-696q-g9pq |
- surrealdb Vendorsurrealdb Affected before 3.1.0 Fixed in 3.1.0 Patch available CNA
- surrealdb (crates.io) Vendor— Affected before 3.1.0 Fixed in 3.1.0 Patch available GHSA-q729-696q-g9pq
Remediation
- Fix · CNA surrealdb (surrealdb) Fixed in 3.1.0
- Fix · GHSA-q729-696q-g9pq surrealdb (crates.io) Fixed in 3.1.0 Advisory →
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
surrealdb 3.1.0
20 records Highest priority Priority MEDIUM 4 MEDIUM, 16 LOW
Other records, highest priority first
- TI-2026-45344 SurrealDB before 3.1.0 Session Hijacking via /rpc sessionsPriority MEDIUM 46
- TI-2026-45334 SurrealDB before 3.1.0 Denial of Service via malformed RPC usePriority MEDIUM 44
- TI-2026-45343 SurrealDB before 3.1.0 Privilege Escalation via RPC Session Race ConditionPriority MEDIUM 42
Timeline
- 2026-10-02 Threatist record created from CVE-2026-63760
- 2026-10-03 Alias added: GHSA-q729-696q-g9pq
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-2026-45334 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
- TI-2024-38450 SurrealDB before 1.1.1 Format String via Scripting Functions CVSS 4.0CRITICAL 9.0
Sources
- CVE-2026-63760 · CVE Program
- CVE-2026-63760 · NVD
- FIRST EPSS
- GHSA-q729-696q-g9pq · GitHub Advisory Database · CC BY 4.0
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