High severity · published Jul 20, 2026
CVE-2026-63739
SurrealDB before 3.1.5 Arbitrary File Read via DEFINE ANALYZER
7.7
CVSS
0.5%
EPSS
No
On KEV
Description
SurrealDB before 3.1.5 contains an arbitrary file read vulnerability in the DEFINE ANALYZER mapper filter that allows database users with EDITOR or OWNER roles to read files accessible to the SurrealDB process. Attackers can specify arbitrary file paths in the mapper filter and retrieve file contents through query error messages when the SURREAL_FILE_ALLOWLIST is empty or not configured.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 41% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SU
surrealdb · surrealdb
before 3.1.5 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-63739
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-63739
Vendor Advisory
https://github.com/surrealdb/surrealdb/security/advisories/GHSA-cc8f-fcx3-gpjr
Third Party Advisory
https://www.vulncheck.com/advisories/surrealdb-before-arbitrary-file-read-via-define-analyzer
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