CVE-2025-71397SurrealDB before 2.2.2 CPU Exhaustion via nested FOR loops
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 7.1 HIGH (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
- Weakness (CWE)
- CWE-835
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Analyzed
- Record last updated
- Oct 8, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
surrealdb surrealdb surrealdb:surrealdb (from the name) | before 2.2.2; 2.2.2 not affected | CNA record |
surrealdb surrealdb surrealdb:surrealdb | before 2.0.5; from 2.1.0 before 2.1.5; from 2.2.0 before 2.2.2 | NVD |
References
- https://github.com/surrealdb/surrealdb/security/advisories/GHSA-pxw4-94j3-v9pfvendor-advisory
- https://www.vulncheck.com/advisories/surrealdb-before-cpu-exhaustion-via-nested-for-loopsthird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.