Medium severity · published Jul 20, 2026
CVE-2026-63749
SurrealDB before 3.1.0 Authentication Bypass via LIVE SELECT
4.3
CVSS
0.4%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 30% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SU
surrealdb · surrealdb
before 3.1.0 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-63749
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-63749
Vendor Advisory
https://github.com/surrealdb/surrealdb/security/advisories/GHSA-6wqw-vhfr-9999
Third Party Advisory
https://www.vulncheck.com/advisories/surrealdb-before-authentication-bypass-via-live-select
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