CVE-2025-71397
SurrealDB before 2.2.2 CPU Exhaustion via nested FOR loops
Description
SurrealDB before 2.0.5, 2.1.x before 2.1.5, and 2.2.x before 2.2.2 allows authenticated users with OWNER or EDITOR permissions (at the root, namespace, or database level) to define custom database functions via DEFINE FUNCTION using nested FOR loops. Although a single loop's iteration count is constrained, nesting multiple loops (e.g., each with 1,000,000 iterations) is not, so an attacker can execute a function that consumes all server CPU time. Configured timeouts do not stop the execution, rendering the server unresponsive to other queries and connections until it is manually restarted.
INFO
Published Date :
July 18, 2026, 2:17 p.m.
Last Modified :
July 18, 2026, 2:17 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2025-71397
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 4.0 | HIGH | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 4.0 | HIGH | [email protected] |
Solution
- Update SurrealDB to version 2.0.5 or later.
- Update SurrealDB to version 2.1.5 or later.
- Update SurrealDB to version 2.2.2 or later.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-71397.
| URL | Resource |
|---|---|
| https://github.com/surrealdb/surrealdb/security/advisories/GHSA-pxw4-94j3-v9pf | |
| https://www.vulncheck.com/advisories/surrealdb-before-cpu-exhaustion-via-nested-for-loops |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-71397 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-71397
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-71397 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-71397 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by [email protected]
Jul. 18, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'surrealdb', 'product': 'surrealdb', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '2.2.2', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '2.2.2', 'versionType': 'semver'}], 'packageURL': 'pkg:cargo/SurrealDB', 'defaultStatus': 'unaffected'}, {'vendor': 'surrealdb', 'product': 'surrealdb', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '2.1.5', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '2.1.5', 'versionType': 'semver'}], 'packageURL': 'pkg:cargo/SurrealDB', 'defaultStatus': 'unaffected'}, {'vendor': 'surrealdb', 'product': 'surrealdb', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '2.0.5', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '2.0.5', 'versionType': 'semver'}], 'packageURL': 'pkg:cargo/SurrealDB', 'defaultStatus': 'unaffected'}] Added Description SurrealDB before 2.0.5, 2.1.x before 2.1.5, and 2.2.x before 2.2.2 allows authenticated users with OWNER or EDITOR permissions (at the root, namespace, or database level) to define custom database functions via DEFINE FUNCTION using nested FOR loops. Although a single loop's iteration count is constrained, nesting multiple loops (e.g., each with 1,000,000 iterations) is not, so an attacker can execute a function that consumes all server CPU time. Configured timeouts do not stop the execution, rendering the server unresponsive to other queries and connections until it is manually restarted. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CWE CWE-835 Added Reference https://github.com/surrealdb/surrealdb/security/advisories/GHSA-pxw4-94j3-v9pf Added Reference https://www.vulncheck.com/advisories/surrealdb-before-cpu-exhaustion-via-nested-for-loops