CVE-2026-72771: n8n versions before 2.32.1 fail to enforce the Allowed HTTP Request Domains allowlist in multiple AI and LLM n

Routine

MEDIUM 6.5UPGRADE

CVE-2026-72771 is a medium-severity flaw (CVSS 6.5) 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 fail to enforce the Allowed HTTP Request Domains allowlist in multiple AI and LLM nodes when user-supplied base or endpoint URLs are configured. Low-privileged workflow editors with use-only access to shared credentials can redirect requests to attacker-controlled hosts and exfiltrate credential secrets for reuse against underlying services.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.4% (top 72%)
CISA exploited list	No
Weakness	CWE-863
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: < 2.31.5 · 2.32.0

Fixed in: 2.31.5

Safe to downgrade to: no unaffected older release

1. Check installed version

npm ls n8n

2. UPGRADE to 2.31.5

npm install n8n@">=2.31.5"

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-2026-72771?

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

Is CVE-2026-72771 being exploited?

CVE-2026-72771 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-2026-72771 affect?

CVE-2026-72771 affects n8n. Severity is medium (CVSS 6.5). n8n versions before 2.32.1 fail to enforce the Allowed HTTP Request Domains allowlist in multiple AI and LLM nodes when user-supplied base or endpoint URLs are configured. Low-privileged workflow editors with use-only access to shared crede

How urgent is CVE-2026-72771?

Priority 30/100. No elevated risk signals yet.

Related CVEs

CVE-2026-77079 HIGH 8.8 UPGRADE n8n before 2.34.1 and 2.33.4 contains an authorization bypass in the custom project role deletion (reassignmen
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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