How severe is CVE-2025-61917?

CVE-2025-61917 has a CVSS 3.x base score of 7.7, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2025-61917 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-61917?

CVE-2025-61917 affects N8n. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-61917?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-61917 have an EU (EUVD) identifier?

Yes. CVE-2025-61917 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-206795.

When was CVE-2025-61917 published?

CVE-2025-61917 was published on 2026-02-04 and last updated on 2026-06-17.

CVE-2025-61917

CVE-2025-61917 is a high-severity vulnerability in N8n with a CVSS 3.x base score of 7.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-200.

Key facts

Severity: High (CVSS 3.x base score 7.7)
EPSS exploit prediction: 0% (28th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-206795
Weakness: CWE-200
Affected product: N8n
Published: 2026-02-04
Last modified: 2026-06-17

Description

n8n is an open source workflow automation platform. From version 1.65.0 to before 1.114.3, the use of Buffer.allocUnsafe() and Buffer.allocUnsafeSlow() in the task runner allowed untrusted code to allocate uninitialized memory. Such uninitialized buffers could contain residual data from within the same Node.js process (for example, data from prior requests, tasks, secrets, or tokens), resulting in potential information disclosure. This issue has been patched in version 1.114.3.

Frequently asked questions

What is CVE-2025-61917?: n8n is an open source workflow automation platform. From version 1.65.0 to before 1.114.3, the use of Buffer.allocUnsafe() and Buffer.allocUnsafeSlow() in the task runner allowed untrusted code to allocate uninitialized memory. Such uninitialized buffers could contain residual data from within the same Node.js process (for example, data from prior requests, tasks, secrets, or tokens), resulting in potential information disclosure. This issue has been patched in version 1.114.3.
How severe is CVE-2025-61917?: CVE-2025-61917 has a CVSS 3.x base score of 7.7, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2025-61917 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-61917?: CVE-2025-61917 affects N8n. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-61917?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-61917 have an EU (EUVD) identifier?: Yes. CVE-2025-61917 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-206795.
When was CVE-2025-61917 published?: CVE-2025-61917 was published on 2026-02-04 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:*

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