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CVE-2026-77071

n8n before 1.123.69 PostgREST Filter Injection via Supabase

Published: Aug 20, 2026Updated: Sep 1, 2026 Sources: CVE List NVDCWE-89
9.8CRITICAL
NVD MITRE
EPSS Score
0.3%
Top 73.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Workaround Only
Self-Check
OpenVAS

Description

n8n before 1.123.69, 2.33.4, and 2.34.1 contains a PostgREST filter injection vulnerability in the Supabase node's Row Get Many, Delete, and Update operations, which built filter queries by concatenating an expression-bindable value without escaping. An attacker could inject a condition that widened the filter to match every row, turning an intended single-row operation into full-table disclosure, deletion, or modification.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-89

Affected Products

n8n
oss-project
n8nSaaSWeb App
Cloud & SaaS / saas-application
n8n-io
commercial·DEaka n8n
n8nOn-premWeb App
Cloud & SaaS / container-orchestration

Exploitability

Workaround Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique
Initial Access
View detailed technique mapping

References

https://github.com/n8n-io/n8n/security/advisories/GHSA-f4f3-2g67-4vhm
github.com
https://www.vulncheck.com/advisories/n8n-before-postgrest-filter-injection-via-supabase
vulncheck.com

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