CVE-2025-71397

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

No CVSS.

References

Link	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

Configurations

No configuration.

History

18 Jul 2026, 14:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-18 14:17

Updated : 2026-07-21 18:37

NVD link : CVE-2025-71397

Mitre link : CVE-2025-71397

CVE.ORG link : CVE-2025-71397

JSON object : View

Products Affected

No product.

CWE

CWE-835

Loop with Unreachable Exit Condition ('Infinite Loop')

{"id": "CVE-2025-71397", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-71397", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-07-20T15:12:40.333706Z"}}], "cvssMetricV40": [{"type": "Secondary", "source": "disclosure@vulncheck.com", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 7.1, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "HIGH", "valueDensity": "NOT_DEFINED", "vectorString": "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/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", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "NONE", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "affected": [{"source": "disclosure@vulncheck.com", "affectedData": [{"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"}]}], "published": "2026-07-18T14:17:11.220", "references": [{"url": "https://github.com/surrealdb/surrealdb/security/advisories/GHSA-pxw4-94j3-v9pf", "source": "disclosure@vulncheck.com"}, {"url": "https://www.vulncheck.com/advisories/surrealdb-before-cpu-exhaustion-via-nested-for-loops", "source": "disclosure@vulncheck.com"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Secondary", "source": "disclosure@vulncheck.com", "description": [{"lang": "en", "value": "CWE-835"}]}], "descriptions": [{"lang": "en", "value": "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."}], "lastModified": "2026-07-21T18:37:56.803", "sourceIdentifier": "disclosure@vulncheck.com"}