CVE-2026-126381 · AI agents & MCP
NO FIX YET · SEE WHAT TO DO
The Vector Store (OracleDB) node in n8n does not validate metadata filter keys used in vector search queries, enabling SQL injection. An attacker who can send crafted input, such as through a webhook feeding a workflow, can read data reachable by the configured Oracle credential.
first public Oct 28, 2026 · 1 source
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Teams running self-hosted or cloud n8n that use the Vector Store (OracleDB) node in workflows fed by untrusted input such as webhooks. The flaw reads data the configured Oracle credential can access, so the exposure depends on what that credential can reach. Installations without this node in their workflows are not affected by this report.
Not affected if no-oracledb-node, trusted-input-only
Who cares n8n, oracle, self-hosted, webhooks
n8n --version and compare against the fixed ranges below.2.43.5 for the 2.43.x line2.44.1 for the 2.44.x line3.0.1 for the 3.x linen8n before 2.43.5, 2.44.x before 2.44.1, and 3.x before 3.0.1 contains an SQL injection vulnerability in the Vector Store (OracleDB) node, which does not validate Metadata Filter keys used in vector search queries. Attackers can supply crafted filter keys through untrusted workflow input such as webhooks to read data accessible to the configured Oracle credential.
This page as .md · .json · CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
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