CVE-2026-77068: n8n before 2.33.4 and 2.34.x before 2.34.1 contain a remote code execution vulnerability in the @n8n/workflow-

Q: How do I fix CVE-2026-77068?

n8n: upgrade to 2.33.4. Exact commands for each OS are on this page.

Q: Is CVE-2026-77068 being exploited?

CVE-2026-77068 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-77068 affect?

CVE-2026-77068 affects n8n. Severity is high (CVSS 8.8). n8n before 2.33.4 and 2.34.x before 2.34.1 contain a remote code execution vulnerability in the @n8n/workflow-sdk node-schema loader used for MCP node-schema loading. The loader derives a node's schema module path directly from the attacker

This month

HIGH 8.8UPGRADE

CVE-2026-77068 is a high-severity flaw (CVSS 8.8) affecting n8n. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

n8n before 2.33.4 and 2.34.x before 2.34.1 contain a remote code execution vulnerability in the @n8n/workflow-sdk node-schema loader used for MCP node-schema loading. The loader derives a node's schema module path directly from the attacker-supplied node type string without validating path-traversal sequences. An authenticated user with global:member privileges can reference malicious files via path traversal, causing code execution in the n8n ma

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.9% (top 40%)
CISA exploited list	No
Weakness	CWE-22
Published	2026-08-20
Last modified	2026-09-01

Publisher (CNA): VulnCheck · Vendor: n8n

Last updated 2026-09-01 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-08-20 12:16 UTCPublished CVE record published
2026-09-01 19:11 UTCUpdated Record last modified

n8n n8n UPGRADE

Affected: >= 2.33.0 and < 2.33.4 · 2.34.0

Fixed in: 2.33.4

Safe to downgrade to: a release before 2.33.0

1. Check installed version

npm ls n8n

2. UPGRADE to 2.33.4

npm install n8n@">=2.33.4"

3. If no update is available yet, DOWNGRADE to a release before 2.33.0

npm view n8n versions npm install n8n@"<2.33.0"

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-77068?

n8n: upgrade to 2.33.4. Exact commands for each OS are on this page.

Is CVE-2026-77068 being exploited?

CVE-2026-77068 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-77068 affect?

CVE-2026-77068 affects n8n. Severity is high (CVSS 8.8). n8n before 2.33.4 and 2.34.x before 2.34.1 contain a remote code execution vulnerability in the @n8n/workflow-sdk node-schema loader used for MCP node-schema loading. The loader derives a node's schema module path directly from the attacker

How urgent is CVE-2026-77068?

Priority 46/100. High severity

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References

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