CVE-2026-86993

published 2026-09-08

CVE-2026-86993: n8n is an open source workflow automation platform. Prior to 1.123.76, 2.37.7, and 2.38.2, a Log Streaming event destination could reference a generic HTTP…

Priority P4 29 medium 4.9 CVSS 3.1

AV N AC L PR H UI N S U C H I N A N

n8n is an open source workflow automation platform. Prior to 1.123.76, 2.37.7, and 2.38.2, a Log Streaming event destination could reference a generic HTTP credential and decrypt whichever credential ID it named without an ownership check. A user with a custom global role carrying Log Streaming scopes could select a credential belonging to another project and send its decrypted secret to an attacker-controlled endpoint. The affected authorization boundary is packages/cli/src/modules/log-streaming.ee/destinations/destination-credentials-access.ts and the credential:read scope. This issue is fixed in versions 1.123.76, 2.37.7 and 2.38.2.

Affected

9 ranges

Vendor	Product	Version range	Fixed in
n8n-io	n8n	< 1.123.76	1.123.76
n8n-io	n8n	—	—
n8n-io	n8n	—	—
n8n	n8n	< 1.123.76	1.123.76
n8n	n8n	>= 0 < 1.123.76	1.123.76
n8n	n8n	>= 2.0.0 < 2.37.7	2.37.7
n8n	n8n	>= 2.0.0 < 2.37.7	2.37.7
n8n	n8n	>= 2.38.0 < 2.38.2	2.38.2
n8n	n8n	>= 2.38.0 < 2.38.2	2.38.2

CVSS provenance

nvd v3.1 4.9 MEDIUM CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

nvd v4.0 5.9 MEDIUM CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:N/VA:N/SC:L/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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CWE-862