CVE-2026-72768: n8n versions before 2.32.1 contain a server-side request forgery protection bypass vulnerability in the MCP Cl

Q: How do I fix CVE-2026-72768?

n8n: upgrade to 2.31.5. Exact commands for each OS are on this page.

Q: Is CVE-2026-72768 being exploited?

CVE-2026-72768 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-2026-72768 affect?

CVE-2026-72768 affects n8n. Severity is high (CVSS 8.3). n8n versions before 2.32.1 contain a server-side request forgery protection bypass vulnerability in the MCP Client node that allows authenticated users to bypass SSRF protections. Attackers can craft workflows that send requests to internal

Routine

HIGH 8.3UPGRADE

CVE-2026-72768 is a high-severity flaw (CVSS 8.3) affecting n8n. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

n8n versions before 2.32.1 contain a server-side request forgery protection bypass vulnerability in the MCP Client node that allows authenticated users to bypass SSRF protections. Attackers can craft workflows that send requests to internal or blocked hosts without routing through SSRF protection, exposing internal services and reading responses back through the workflow.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	8.3 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.4% (top 67%)
CISA exploited list	No
Weakness	CWE-918
Published	2026-08-11
Last modified	2026-10-23

Publisher (CNA): VulnCheck · Vendor: n8n

Last updated 2026-10-23 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-08-11 13:19 UTCPublished CVE record published
2026-10-23 19:10 UTCUpdated Record last modified

n8n n8n UPGRADE

Affected: >= 2.31.0 and < 2.31.5 · 2.32.0

Fixed in: 2.31.5

Safe to downgrade to: a release before 2.31.0

1. Check installed version

npm ls n8n

2. UPGRADE to 2.31.5

npm install n8n@">=2.31.5"

3. If no update is available yet, DOWNGRADE to a release before 2.31.0

npm view n8n versions npm install n8n@"<2.31.0"

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.

Exact fixes by distribution

Fedora 46 · clementine · FIXED · 1.4.2-1.fc46 · FEDORA-2026-3e748ef4d3 · source

sudo dnf upgrade --advisory=FEDORA-2026-3e748ef4d3

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-2026-72768?

n8n: upgrade to 2.31.5. Exact commands for each OS are on this page.

Is CVE-2026-72768 being exploited?

CVE-2026-72768 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-2026-72768 affect?

CVE-2026-72768 affects n8n. Severity is high (CVSS 8.3). n8n versions before 2.32.1 contain a server-side request forgery protection bypass vulnerability in the MCP Client node that allows authenticated users to bypass SSRF protections. Attackers can craft workflows that send requests to internal

How urgent is CVE-2026-72768?

Priority 37/100. High severity

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CVE-2026-72765 CRITICAL 9.9 UPGRADE n8n before 2.31.5 and before 2.32.1 contain a sandbox escape vulnerability in expression evaluation
CVE-2026-72764 HIGH 8.8 UPGRADE n8n's JavaScript task runner shared a single module cache across all users' Code-node executions
CVE-2026-72767 HIGH 8.8 UPGRADE n8n before 1.123.67, 2.x before 2.31.5, and 2.32.x before 2.32.1 contain a remote code execution vulnerability
CVE-2026-72750 HIGH 8.8 UPGRADE n8n before 1.123.67, 2.31.5, and 2.32.1 contains a SQL injection vulnerability in the Snowflake node's Execute

References

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