CVE-2026-63745

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.

CVSS 4.0

5.3CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

CVSS 3.1

5.4CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

EPSS

0.2% chance of exploitation in the next 30 days; higher than 16% of CVEs (scores of 2026-10-25)

CWE

CWE-639

Published

2026-07-20

Modified

2026-10-08

Record from

the NVD, synced 2026-10-19

Affected

• surrealdb:surrealdb

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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