Path Traversal in Surrealdb
CVE-2026-63739
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.
Vulnerability class: Path Traversal (Directory Traversal)
EPSS: 0.005 (39.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N.
Affected products
- Surrealdb — versions 0, 3.1.5
Weakness classification (CWE)
References
- disclosure@vulncheck.com (vendor-advisory, Mitigation, Vendor Advisory)
- disclosure@vulncheck.com (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-63739?
- CVE-2026-63739 is a high-severity vulnerability in Surrealdb, classified under Path Traversal. CVSS score: 7.7/10. Published 2026-07-20.
- How severe is CVE-2026-63739?
- High severity. CVSS v3 base score is 7.7 out of 10.