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CVE-2026-63734— SurrealDB before 3.2.0 Denial of Service via malformed SurrealML import

CVSS 4.9 · Medium

Affected Version Matrix 2

VendorProductVersion RangeStatus
surrealdbsurrealdb< 3.2.0affected
3.2.0unaffected
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I. Basic Information for CVE-2026-63734

Vulnerability Information
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Vulnerability Title
SurrealDB before 3.2.0 Denial of Service via malformed SurrealML import
Source: NVD (National Vulnerability Database)
Vulnerability Description
SurrealDB versions before 3.2.0 contain a denial of service vulnerability in the SurrealML header parser that allows authenticated Owner-role users to crash the server by uploading a malformed .surml file to the /ml/import endpoint. Attackers can supply non-numeric input-dimensions or other malformed header fields that trigger unchecked unwrap calls, causing a panic that aborts the entire server process and denies service to all databases.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
输入验证不恰当
Source: NVD (National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
surrealdbsurrealdb 0 ~ 3.2.0 -

II. Public POCs for CVE-2026-63734

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III. Intelligence Information for CVE-2026-63734

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Vendor Advisories for CVE-2026-63734 (2)

Same Patch Batch · surrealdb · 2026-07-20 · 31 CVEs total

CVE-2026-637578.8 HIGHSurrealDB before 3.1.0 Session Hijacking via /rpc sessions
CVE-2026-637358.1 HIGHSurrealDB before 3.2.0 Authentication Bypass via Custom API
CVE-2026-637568.1 HIGHSurrealDB before 3.1.0 Privilege Escalation via RPC Session Race Condition
CVE-2026-637397.7 HIGHSurrealDB before 3.1.5 Arbitrary File Read via DEFINE ANALYZER
CVE-2026-637477.5 HIGHSurrealDB before 3.1.0 Denial of Service via malformed RPC use
CVE-2026-637607.5 HIGHSurrealDB before 3.1.0 Denial of Service via JSON Parser
CVE-2026-637466.5 MEDIUMSurrealDB before 3.1.0 Permission Bypass via Graph Traversal
CVE-2026-637596.5 MEDIUMSurrealDB before 3.1.0 Denial of Service nested type annotations
CVE-2026-637556.5 MEDIUMSurrealDB before 3.1.0 Permission Bypass via WHERE Clause
CVE-2026-637406.5 MEDIUMSurrealDB before 3.1.4 Array Element Permission Bypass
CVE-2026-637416.5 MEDIUMSurrealDB before 3.1.0 Authentication Bypass via USE statement
CVE-2026-637376.5 MEDIUMSurrealDB before 3.1.5 Denial of Service via deep operator chains
CVE-2026-637546.5 MEDIUMSurrealDB before 3.1.0 Denial of Service via LIVE Query
CVE-2026-637436.4 MEDIUMSurrealDB before 3.1.0 Port-Specific Deny Rule Bypass via HTTP Redirect
CVE-2026-637455.4 MEDIUMSurrealDB before 3.1.0 Authorization Bypass via Composite Record-id
CVE-2026-637585.4 MEDIUMSurrealDB before 3.1.0 Authorization Bypass via KILL Statement
CVE-2026-637505.3 MEDIUMSurrealDB before 3.1.0 Memory Amplification via /sql WebSocket
CVE-2026-637334.3 MEDIUMSurrealDB before 3.2.0 Permissions Bypass via PERMISSIONS Clause
CVE-2026-637494.3 MEDIUMSurrealDB before 3.1.0 Authentication Bypass via LIVE SELECT
CVE-2026-637484.3 MEDIUMSurrealDB before 3.1.0 Information Disclosure via Error Messages

Showing top 20 of 31 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: surrealdb
Same vendor: surrealdb
Same weakness: CWE-20

V. Comments for CVE-2026-63734

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