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.
References (2)
Core 2
Core References
Vendor Advisory x_refsource_confirm
https://github.com/n8n-io/n8n/security/advisories/GHSA-49mx-fj45-q3p6
Patch x_refsource_misc
https://github.com/n8n-io/n8n/commit/2c4c2953199733c791f739a40879ae31ca129aba
Scores
CVSS v3
7.7
EPSS
0.0036
EPSS Percentile
28.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-668
CWE-200
Status
published
Products (2)
n8n/n8n
1.65.0 - 1.114.3
npm/n8n
1.65.0 - 1.114.3npm
Published
Feb 04, 2026
Tracked Since
Feb 18, 2026