---
id: CVE-2025-71395
title: >-
  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
summary: >-
  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 …
severity: none
cwe:
  - CWE-789
published: '2026-07-18'
updated: '2026-07-18'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-71395'
references:
  - url: >-
      https://github.com/surrealdb/surrealdb/security/advisories/GHSA-3633-g6mg-p6qq
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/surrealdb-before-memory-exhaustion-via-string-replace
    label: disclosure@vulncheck.com
tags:
  - nvd
ingestedAt: '2026-07-19T05:29:21.257Z'
epss: 0.0045
epssPercentile: 0.36502
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.