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TI-2025-43513 Aliases CVE-2025-71397GHSA-33m9-4q46-9q55

SurrealDB before 2.2.2 CPU Exhaustion via nested FOR loops

Priority LOW 32CWE-835Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-835.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00551 46th percentileScored 2026-11-07
Fix Fixed surrealdb (surrealdb): 2.2.2, 2.1.5, 2.0.5

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
surrealdbsurrealdb2.2.0 to before 2.2.22.2.2Patch availableCNA
surrealdbsurrealdb2.1.0 to before 2.1.52.1.5Patch availableCNA
surrealdbsurrealdbbefore 2.0.52.0.5Patch availableCNA
  • surrealdb Vendorsurrealdb Affected 2.2.0 to before 2.2.2 Fixed in 2.2.2 Patch available CNA
  • surrealdb Vendorsurrealdb Affected 2.1.0 to before 2.1.5 Fixed in 2.1.5 Patch available CNA
  • surrealdb Vendorsurrealdb Affected before 2.0.5 Fixed in 2.0.5 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:surrealdb:surrealdb:*:*:*:*:*:*:*:*before 2.0.5; 2.1.0 to before 2.1.5; 2.2.0 to before 2.2.2Vulnerablesurrealdb
  • cpe:2.3:a:surrealdb:surrealdb:*:*:*:*:*:*:*:* Versions before 2.0.5; 2.1.0 to before 2.1.5; 2.2.0 to before 2.2.2 Vulnerable ·surrealdb

Remediation

  • Fix · CNA surrealdb (surrealdb) Fixed in 2.2.2
  • Fix · CNA surrealdb (surrealdb) Fixed in 2.1.5
  • Fix · CNA surrealdb (surrealdb) Fixed in 2.0.5

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    surrealdb 2.1.5, 2.2.2

    8 records Highest priority Priority MEDIUM 1 MEDIUM, 7 LOW

    Other records, highest priority first

    • TI-2025-43508 SurrealDB before 2.2.2 SurrealQL Injection via exportPriority MEDIUM 43
    • TI-2025-43511 SurrealDB before 2.2.2 Memory Exhaustion via string::replacePriority LOW 32
    • TI-2025-43507 SurrealDB before 2.2.2 Denial of Service via /sql endpointPriority LOW 32
    Show all 8 records →
  • Release ·

    surrealdb 2.0.5

    7 records Highest priority Priority MEDIUM 1 MEDIUM, 6 LOW

    Other records, highest priority first

    • TI-2025-43508 SurrealDB before 2.2.2 SurrealQL Injection via exportPriority MEDIUM 43
    • TI-2025-43511 SurrealDB before 2.2.2 Memory Exhaustion via string::replacePriority LOW 32
    • TI-2025-43507 SurrealDB before 2.2.2 Denial of Service via /sql endpointPriority LOW 32
    Show all 7 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-71397
  2. 2026-10-03 Alias added: GHSA-33m9-4q46-9q55
  3. 2026-10-29 Affected versions changed · CNA

References

Advisory 1

  • TI-2026-45344 SurrealDB before 3.1.0 Session Hijacking via /rpc sessions CVSS 4.0HIGH 8.7
  • TI-2024-38452 SurrealDB before 1.1.0 Denial of Service via HTTP Headers CVSS 4.0HIGH 8.7
  • TI-2026-45347 SurrealDB before 3.1.0 Denial of Service via JSON Parser CVSS 4.0HIGH 8.7
  • TI-2026-45334 SurrealDB before 3.1.0 Denial of Service via malformed RPC use CVSS 4.0HIGH 8.7
  • TI-2025-43508 SurrealDB before 2.2.2 SurrealQL Injection via export CVSS 4.0CRITICAL 9.4
  • TI-2026-45343 SurrealDB before 3.1.0 Privilege Escalation via RPC Session Race Condition CVSS 4.0CRITICAL 9.2
See all 54 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences