What’s Vulnerable › Vulnerabilities

CVE-2025-71391: SurrealDB before 2.2.2 Denial of Service via /sql endpoint

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-18 · updated 2026-10-29
• Weakness: CWE-248

Description

SurrealDB versions before 2.2.2 contain an uncaught exception vulnerability in the net module that allows authenticated users to crash the database. Attackers can send crafted HTTP queries containing null bytes to the /sql endpoint, causing an unhandled exception that crashes the SurrealDB instance and any dependent applications.

Affected products

• surrealdb: before 2.2.2 — fixed in 2.2.2
• surrealdb: from 2.2.0 before 2.2.2 — fixed in 2.2.2

How to fix

Upgrade to a fixed version: surrealdb 2.2.2; surrealdb 2.2.2. Check the vendor advisory for mitigations.

References

• https://github.com/surrealdb/surrealdb/security/advisories/GHSA-rq86-9m6r-cm3g
• https://www.vulncheck.com/advisories/surrealdb-before-denial-of-service-via-sql-endpoint

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