# CVE-2026-126381: n8n before 2.44.1 SQL Injection via Vector Store (OracleDB) Metadata Filter Key

Status: published. Published: 2026-11-13. Updated: 2026-11-13.

n8n 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.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- n8n-io / n8n (n8n): ≥ 2.44.0; < 2.44.1 (affected, semver); 2.44.1 (unaffected, semver). Source: CNA: VulnCheck
- n8n-io / n8n (n8n): ≥ 0; < 2.43.5 (affected, semver); 2.43.5 (unaffected, semver). Source: CNA: VulnCheck
- n8n-io / n8n (n8n): ≥ 3.0.0; < 3.0.1 (affected, semver); 3.0.1 (unaffected, semver). Source: CNA: VulnCheck

## Severity and prioritization

- CVSS 4.0: 4.9 (medium); 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; source: CNA: VulnCheck

- CVSS 3.1: 6.3 (medium); CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N; source: CNA: VulnCheck

- CVSS 4.0: 4.9 (medium); 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; source: NVD: disclosure@vulncheck.com

- CVSS 3.1: 6.3 (medium); CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N; source: NVD: disclosure@vulncheck.com

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-89

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://github.com/n8n-io/n8n/security/advisories/GHSA-2x68-96jw-5r6c (CNA: VulnCheck; vendor-advisory)

- https://www.vulncheck.com/advisories/n8n-before-2.44.1-sql-injection-via-vector-store-oracledb-metadata-filter-key (CNA: VulnCheck; third-party-advisory)

- https://github.com/n8n-io/n8n/security/advisories/GHSA-2x68-96jw-5r6c (disclosure@vulncheck.com)

- https://www.vulncheck.com/advisories/n8n-before-2.44.1-sql-injection-via-vector-store-oracledb-metadata-filter-key (disclosure@vulncheck.com)

## Provenance

- CNA: VulnCheck: https://www.cve.org/CVERecord?id=CVE-2026-126381; retrieved 2026-11-13; source updated 2026-11-13

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-126381; retrieved 2026-11-13; source updated 2026-11-13

Revision: bb719120472483a2bd5810b3ab25770b0f53348d361c6bc00ca7fa2810d6bcf5

Canonical: https://y2.dev/cve/CVE-2026-126381

## Agent and API access

Public CVE pages, Markdown, and JSON are free to read without an account or API key.

- Public catalog: https://y2.dev/cve/index.json. Follow nextCursor with the same search, filters, sort, and limit (1–100). A null cursor marks the end.

- WebMCP: search_cve_disclosures, get_cve_disclosure, get_cve_page_markdown, get_y2_cve_access. Available in compatible browsers.

- Cyber API: https://api.y2.dev/api/v2/cyber/cves and https://api.y2.dev/api/v2/cyber/cves/{cveId}.

- Y2 Pro or Elite: create a workspace API key with the intel:cyber scope and send Authorization: Bearer <Y2_API_KEY>. Setup: https://y2.dev/docs/api/create-key.

- x402: Pay per request without an account or API key. Omit Authorization, read the HTTP 402 PAYMENT-REQUIRED challenge, validate its current requirements, and retry with PAYMENT-SIGNATURE through an authorized payment client. These browser tools never make payments. Guide: https://y2.dev/docs/api/x402.

- OpenAPI: https://y2.dev/api/openapi.yaml. Agent access metadata: https://y2.dev/cve/agent.json.

Collected public records only. Check source status for coverage and freshness.