CVE-2025-71395

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.

References

• https://github.com/surrealdb/surrealdb/security/advisories/GHSA-3633-g6mg-p6qq
• https://www.vulncheck.com/advisories/surrealdb-before-memory-exhaustion-via-string-replace