SurrealDB before 3.1.0 Authentication Bypass via LIVE SELECT
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-863.
Summary
SurrealDB versions before 3.1.0 contain an authentication bypass vulnerability in LIVE SELECT subscriptions where permission expressions referencing $value, $before, $after, or $event are evaluated against attacker-controlled bindings instead of actual documents. Authenticated subscribers can bind chosen values to these parameter names and register LIVE SELECT queries to receive notifications for records that SELECT permission expressions should have hidden.
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 3.1.0
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-2026-45347 SurrealDB before 3.1.0 Denial of Service via JSON ParserPriority MEDIUM 44
- TI-2026-45334 SurrealDB before 3.1.0 Denial of Service via malformed RPC usePriority MEDIUM 44
Timeline
- 2026-10-02 Threatist record created from CVE-2026-63749
- 2026-10-03 Alias added: GHSA-75qw-w395-xvv7
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-2026-63749 · CVE Program
- CVE-2026-63749 · NVD
- FIRST EPSS
- GHSA-75qw-w395-xvv7 · GitHub Advisory Database · CC BY 4.0
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