PT-2026-50176 · Postgresql Global Development Group+2 · Postgres+2

Sm1Ee · CVE-2026-54310 · Published 2026-06-16 · Updated 2026-07-16

Positive Technologies (AI Summary)

CVSS v3.1

9.9

Critical

Base vector

AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions n8n versions prior to 2.25.7 n8n versions prior to 2.26.2

Description An authenticated user with permissions to create or modify workflows can provide crafted parameters to the TimescaleDB and legacy Postgres v1 nodes. This allows arbitrary SQL injection and execution against the connected database, operating under the privileges of the configured database account.

Recommendations Update to version 2.25.7 or later. Update to version 2.26.2 or later. Limit workflow creation and editing permissions to fully trusted users only. Disable the Postgres and TimescaleDB nodes by adding n8n-nodes-base.postgres and n8n-nodes-base.timescaleDb to the NODES EXCLUDE environment variable.

Exploit

Fix

SQL injection

Weakness Enumeration

CWE-89

Related Identifiers

CVE-2026-54310

GHSA-C37G-W77Q-M4VP

Affected Products

Postgres

Timescaledb

N8N

References · 9

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54310.json · Exploit
• https://github.com/n8n-io/n8n/security/advisories/GHSA-c37g-w77q-m4vp · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-c37g-w77q-m4vp · Vendor Advisory
• https://osv.dev/vulnerability/ROOT-APP-NPM-CVE-2026-54310 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2026-54310 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-54310 · Security Note
• https://github.com/n8n-io/n8n · Note
• https://t.me/cveNotify/175932 · Telegram Post
• https://t.me/cveNotify/173306 · Telegram Post