High severityNVD Advisory· Published Feb 4, 2026· Updated Feb 5, 2026
n8n Unsafe Buffer Allocation Allows In-Process Memory Disclosure in Task Runner
CVE-2025-61917
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.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
n8nnpm | >= 1.65.0, < 1.114.3 | 1.114.3 |
Affected products
2Patches
Vulnerability mechanics
References
4- github.com/advisories/GHSA-49mx-fj45-q3p6ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2025-61917ghsaADVISORY
- github.com/n8n-io/n8n/commit/2c4c2953199733c791f739a40879ae31ca129abaghsax_refsource_MISCWEB
- github.com/n8n-io/n8n/security/advisories/GHSA-49mx-fj45-q3p6ghsax_refsource_CONFIRMWEB
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