What’s Vulnerable › Vulnerabilities

CVE-2026-63745: SurrealDB before 3.1.0 Authorization Bypass via Composite Record-id

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-20 · updated 2026-10-08
• Weakness: CWE-639

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.

Affected products

• surrealdb: before 3.1.0 — fixed in 3.1.0

How to fix

Upgrade to a fixed version: surrealdb 3.1.0. Check the vendor advisory for mitigations.

References

• https://github.com/surrealdb/surrealdb/security/advisories/GHSA-6vg3-hgrw-p5gf
• https://www.vulncheck.com/advisories/surrealdb-before-authorization-bypass-via-composite-record-id

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