TI-2026-71156 Aliases CVE-2026-109340 GHSA-776g-xgm5-fjc8

Authorization bypass in SurrealDB lets users delete protected graph edges

LOW 24CWE-862Published 2026-10-12 · Updated 2026-10-13

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Security bypass
Confidentiality · integrity · availability: None · Low · Low
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-862.

Summary

SurrealDB from 3.1.0 before 3.3.0 has a missing authorization check (CWE-862) that lets authenticated users delete protected graph edges. A REFERENCE ON DELETE CASCADE runs edge cleanup with permission checks disabled, so an attacker with delete permission on a referenced table can erase edges even when the edge table's PERMISSIONS FOR delete clause forbids it. The CVSS vector rates the impact as low integrity and low availability, with low privileges needed over the network.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

SurrealDB from 3.1.0 before 3.3.0 contains an authorization bypass vulnerability that allows authenticated users to delete protected graph edges by triggering a REFERENCE ON DELETE CASCADE. Attackers with delete permission on a referenced table can delete a record whose cascade disables permission checks for edge cleanup, erasing edges despite the edge table's PERMISSIONS FOR delete clause.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00238 14th percentileScored 2026-11-07

Fix Fixed surrealdb (surrealdb): 3.3.0

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

Vendor	Product	Affected versions	Fixed in	Status	Source
surrealdb	surrealdb	3.1.0 to before 3.3.0	3.3.0	Patch available	CNA

surrealdb Vendorsurrealdb Affected 3.1.0 to before 3.3.0 Fixed in 3.3.0 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPE	Versions	Role	Vendor
cpe:2.3:a:surrealdb:surrealdb::::::::	—	—	surrealdb

cpe:2.3:a:surrealdb:surrealdb:*:*:*:*:*:*:*:* Versions — — ·surrealdb

Remediation

Upgrade SurrealDB to version 3.3.0. CISA does not list this vulnerability in its Known Exploited Vulnerabilities catalog.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Fix · CNA surrealdb (surrealdb) Fixed in 3.3.0

Fixed in the same release

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

Release · 2026-10-12
surrealdb 3.3.0
11 records Highest priority Priority LOW 11 LOW
Other records, highest priority first
- TI-2026-71159 Cross-tenant access in SurrealDB through the USE statementPriority LOW 39
- TI-2026-71150 Cross-tenant access in SurrealDB through namespace and database selectionPriority LOW 37
- TI-2026-71157 Field permission bypass in SurrealDB via PATCH copy and movePriority LOW 31
Show all 11 records →

Timeline

2026-10-12 Threatist record created from CVE-2026-109340
2026-10-12 Alias added: GHSA-776g-xgm5-fjc8
2026-10-13 CISA SSVC decision points changed

References

Advisory 1

GitHub Security Advisory (GHSA-4w65-7h3j-p29h)

TI-2026-84300 SurrealDB index planner lets users infer restricted fields CVSS 4.0MEDIUM 5.3
TI-2026-84304 Server-side request forgery in SurrealDB via JWKS URL default ports CVSS 4.0MEDIUM 5.1
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

See all 76 →

Sources

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