CVE-2025-71395

Medium

Description

SurrealDB versions before 2.2.2 contain a memory exhaustion vulnerability in the string::replace function that fails to restrict resulting string length when using regex patterns. An authenticated attacker can craft a malicious query to exhaust server memory through unbounded string allocations, causing denial of service.

SeverityMedium

CVSS6.5

Exploit probability—

ProductSurrealdb

PublishedJul 18, 2026

First seenJul 18, 2026

Weakness typeCWE-789CWE-789

How to fix

Update

surrealdb surrealdb2.0.5, 2.1.5, 2.2.2 or later

Vendor advisories

github.com/surrealdb/surrealdb/security/advisories/GHSA-3633-g6mg-p6qq

Affected products

Product	Affected versions	Fixed in
surrealdb surrealdb	v < 2.0.5, 2.1.0 ≤ v < 2.1.5, 2.2.0 ≤ v < 2.2.2	2.0.5, 2.1.5, 2.2.2

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