Is CVE-2025-71397 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2025-71397 being exploited in the wild.

How severe is CVE-2025-71397?

Medium severity, with a CVSS score of 4, published 18 July 2026.

Which products and versions are affected?

surrealdb (crates.io) SEMVER:introduced=2.2.0,fixed=2.2.2.

Is there a fix for CVE-2025-71397?

Yes. surrealdb (crates.io): upgrade to 2.2.2 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2025-71397 attacked?

It is attacked over the network, in a hosted service.

Am I affected by CVE-2025-71397?

Check whether you run surrealdb (crates.io) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2025-71397: SurrealDB denial of service via nested FOR loops in custom functions

CVE-2025-71397 · Severity: medium · CVSS 4 · Published 2026-07-18

SurrealDB, a multi-model cloud database, is vulnerable to a denial-of-service attack that can completely freeze the server. An authorized user with permission to create functions can use nested loops to exhaust the server's CPU resources. This causes the database to stop responding to all other users and queries, requiring a manual restart to restore service.

Technologies: surrealdb (crates.io). Vendors: crates.io.

Quick answers

Is CVE-2025-71397 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2025-71397 being exploited in the wild.
How severe is CVE-2025-71397?: Medium severity, with a CVSS score of 4, published 18 July 2026.
Which products and versions are affected?: surrealdb (crates.io) SEMVER:introduced=2.2.0,fixed=2.2.2.
Is there a fix for CVE-2025-71397?: Yes. surrealdb (crates.io): upgrade to 2.2.2 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2025-71397 attacked?: It is attacked over the network, in a hosted service.
Am I affected by CVE-2025-71397?: Check whether you run surrealdb (crates.io) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

surrealdb (crates.io): upgrade to 2.2.2 or later
```
cargo update -p surrealdb
```

Technical details

A vulnerability in the SurrealQL parser and interpreter allows for CPU exhaustion via the DEFINE FUNCTION statement. While individual FOR loops have iteration constraints, the engine fails to limit the cumulative iterations of nested loops. An attacker with OWNER or EDITOR privileges can define and execute a function with multiple nested loops (e.g., several levels of 1,000,000 iterations), which bypasses configured execution timeouts. This results in 100% CPU utilization, preventing the server from processing other queries or accepting new connections. The issue is resolved in versions 2.0.5, 2.1.5, and 2.2.2 by adding context cancellation and timeout checks within each loop iteration.

Affected products

SurrealDB SurrealDB < 2.0.5, 2.1.x < 2.1.5, 2.2.x < 2.2.2

Identifiers

CVE-2025-71397
GHSA-pxw4-94j3-v9pf

Timeline

2025-04-10: advisory: Vendor advisory published via GitHub
2026-07-18: disclosed: NVD publication date

References

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