{"id":"CVE-2026-54310","title":"n8n: SQL Injection in Postgres v1/TimesclaeDB Nodes","summary":"n8n: SQL Injection in Postgres v1/TimesclaeDB Nodes","severity":"medium","cvss":9.9,"cwe":["CWE-89"],"vendor":"n8n","product":"n8n","ecosystem":"npm","affected":["n8n >= 2.26.0, < 2.26.2","n8n < 2.25.7"],"patched":["n8n 2.26.2","n8n 2.25.7"],"published":"2026-06-16","updated":"2026-06-16","source":"GHSA","sourceUrl":"https://github.com/advisories/GHSA-c37g-w77q-m4vp","references":[{"url":"https://github.com/n8n-io/n8n/security/advisories/GHSA-c37g-w77q-m4vp"},{"url":"https://github.com/advisories/GHSA-c37g-w77q-m4vp"}],"tags":["ghsa","npm"],"epss":0.00545,"epssPercentile":0.44375,"ingestedAt":"2026-06-29T14:31:47.727Z","slug":"CVE-2026-54310","body":"## Overview\n\n## Impact\nAn authenticated user with permission to create or modify workflows could supply a crafted parameters to the TimescaleDB and/or legacy Postgres v1 node's allowing arbitrary SQL to be injected and executed against the connected database within the privileges of the configured database account.\n\n## Patches\nThe issue has been fixed in n8n versions 2.25.7, and 2.26.2. Users should upgrade to one of these versions or later to remediate the vulnerability.\n\n## Workarounds\nIf upgrading is not immediately possible, administrators should consider the following temporary mitigations:\n- Limit workflow creation and editing permissions to fully trusted users only.\n- Disable the Postgres and TimescaleDB node by adding `n8n-nodes-base.postgres`,  `n8n-nodes-base.timescaleDb` to the `NODES_EXCLUDE` environment variable.\n\nThese workarounds do not fully remediate the risk and should only be used as short-term mitigation measures.\n\n## Affected packages\n\n- `n8n >= 2.26.0, < 2.26.2`\n- `n8n < 2.25.7`\n\n## Remediation\n\nUpgrade to a patched release:\n\n- `n8n 2.26.2`\n- `n8n 2.25.7`","depth":"sunlit","depthScore":55,"depthScoreParts":{"impact":54.5,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}