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TI-2026-45337 Aliases CVE-2026-63750GHSA-qg3v-r4m7-x5f5

SurrealDB before 3.1.0 Memory Amplification via /sql WebSocket

Priority LOW 37CWE-770Published · Updated

Key facts

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

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-770.

Summary

SurrealDB versions before 3.1.0 fail to apply the SURREAL_WEBSOCKET_MAX_MESSAGE_SIZE limit to anonymous /sql WebSocket connections, allowing attackers to buffer unbounded frames in the per-connection read buffer. Attackers can stream WebSocket frames larger than the configured limit across multiple concurrent connections to consume excessive memory and degrade /sql availability.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00493 42nd percentileScored 2026-11-07
Fix Fixed surrealdb (surrealdb): 3.1.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
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
surrealdbsurrealdbbefore 3.1.03.1.0Patch availableCNA
  • surrealdb Vendorsurrealdb Affected before 3.1.0 Fixed in 3.1.0 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:surrealdb:surrealdb:*:*:*:*:*:*:*:*before 3.1.0Vulnerablesurrealdb
  • cpe:2.3:a:surrealdb:surrealdb:*:*:*:*:*:*:*:* Versions before 3.1.0 Vulnerable ·surrealdb

Remediation

  • Fix · CNA surrealdb (surrealdb) Fixed in 3.1.0

Fixed in the same release

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

  • Release ·

    surrealdb 3.1.0

    20 records Highest priority Priority MEDIUM 4 MEDIUM, 16 LOW

    Other records, highest priority first

    • TI-2026-45344 SurrealDB before 3.1.0 Session Hijacking via /rpc sessionsPriority MEDIUM 46
    • TI-2026-45347 SurrealDB before 3.1.0 Denial of Service via JSON ParserPriority MEDIUM 44
    • TI-2026-45334 SurrealDB before 3.1.0 Denial of Service via malformed RPC usePriority MEDIUM 44
    Show all 20 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-63750
  2. 2026-10-03 Alias added: GHSA-qg3v-r4m7-x5f5

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