high severityConfidence highHistorical record

n8n member RCE via MCP node-schema path traversal

Direct answer

n8n member RCE via MCP node-schema path traversal, also tracked as CVE-2026-77068 is a high-severity threat campaign HOL Guard tracked from Aug 20, 2026 to Sep 21, 2026, verified against 3 primary sources and last reviewed Sep 22, 2026. Active tracking has ended and the record remains published as a permanent historical research record.

CVE-2026-77068 is a high-severity n8n RCE in MCP node-schema path handling. Versions before 2.33.4 and 2.34.x before 2.34.1 are affected; upgrade to 2.33.4 or 2.34.1 as appropriate.

Also tracked as CVE-2026-77068

First observed
Aug 20, 2026
Last observed
Sep 21, 2026
Last reviewed
Sep 22, 2026
Tracking ended
Sep 21, 2026

Record exports

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Uncertainty and limitations

Read the evidence limits before acting on this record.

Affected and fixed ranges follow the current CVE record. Confirm the target train before upgrading.

  • Campaign tracks CVE-2026-77068 only.
  • The flaw requires an authenticated user with global:member privileges according to the current CVE record.
  • CISA SSVC reported no known exploitation in the reviewed record state.
  • HOL blog is operator guidance.

Guard coverage and policy

What Guard's reviewed assertions do and do not claim for this campaign, and the reviewed starting points for defense.

No Guard coverage mapping or campaign-specific policy guidance is published for this record.

Safe next step. Campaign guidance is defensive context. It does not auto-apply policy or claim universal campaign coverage.

Open policy controlsCampaign-specific emergency policy starting point

Timeline

Reviewed events, oldest first, each tied to a verified source.

  1. Disclosure

    CVE-2026-77068 n8n MCP path traversal RCE disclosed.

    Sources:NVD CVE-2026-77068·CVE Record CVE-2026-77068

  2. Update

    HOL Guard published operator coverage.

    Source:HOL Guard operator write-up

  3. Correction

    HOL reconciled the current fixed versions, authenticated global:member precondition, and CNA severity.

    Sources:CVE Record CVE-2026-77068·HOL Guard operator write-up

Publication clock: 793.0 hours from reviewed disclosure timestamp to HOL publication; 24-hour high target; historical backfill outside target.

Sources

Every claim on this record is traceable to the sources below.

Campaign questions, answered

CVE-2026-77068 is a high-severity n8n RCE in MCP node-schema path handling. Versions before HOL Guard tracked the campaign from Aug 20, 2026 to Sep 21, 2026.

No. Active tracking ended Sep 21, 2026; this page remains as a labeled historical research record and does not imply the threat is currently active.

The record cites 3 primary sources, names 0 reviewed artifacts, and was last fully reviewed Sep 22, 2026 by HOL Guard Security Publishing. Its uncertainty and limitations are stated on the record itself.

Campaign guidance is defensive context. It does not auto-apply policy or claim universal campaign coverage.

The permalink above is permanent. The full record can be downloaded from this page as JSON, an artifact CSV, and a STIX 2.1 bundle, and corrections can be requested through the published correction path on the record. Affected and fixed ranges follow the current CVE record. Confirm the target train before upgrading.

Reviewed in full by HOL Guard Security Publishing.

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Record HGTC-2026-A9199605