CVE-2026-63745
Received Received - Intake

SurrealDB Authorization Bypass via Spoofed Record-ID Fields

Publication date: 2026-07-20

Last updated on: 2026-07-20

Assigner: VulnCheck

Description
SurrealDB versions before 3.1.0 contain an authorization bypass vulnerability where authenticated users can spoof composite record-id field values by writing to editable body fields. Attackers can bypass permission rules that gate access on id components like tenant isolation by setting same-named body fields to spoofed values that permission checks incorrectly read instead of the immutable id key.

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Meta Information

Published
2026-07-20
Last Modified
2026-07-20
Generated
2026-07-21
AI Q&A
2026-07-20
EPSS Evaluated
N/A
NVD
CVE-2026-63745
EUVD
EUVD-2026-45916

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
surrealdb surrealdb to 3.1.0 (exc)

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-639 The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.

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Executive Summary

This vulnerability in SurrealDB versions before 3.1.0 allows authenticated users to bypass authorization checks by manipulating composite record-id field values. Attackers can spoof values in editable body fields that permission checks incorrectly read instead of the immutable id key, enabling them to bypass rules like tenant isolation.

Detection Guidance

To detect this vulnerability, check if your SurrealDB version is below 3.1.0. Run the command: surrealdb version. If the output shows a version less than 3.1.0, your system is vulnerable.

Impact Analysis

An attacker could read records hidden by permission rules by setting spoofed field values on records they control. They could also cause UNIQUE constraints on ID components to admit duplicate entries, violating database integrity. The vulnerability does not affect availability or crash the server.

Compliance Impact

This vulnerability could potentially violate compliance with standards like GDPR and HIPAA by allowing unauthorized access to sensitive data. If permission rules enforcing tenant isolation or data segregation are bypassed, it may lead to unauthorized data exposure or modification, compromising confidentiality and integrity requirements.

Mitigation Strategies

Upgrade SurrealDB to version 3.1.0 or later immediately. If upgrading is not possible, avoid using permission expressions that reference id.<field> on object-keyed record IDs. Instead, gate access on the full record ID or server-derived session values.

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