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CVE-2026-56778

MEDIUM
6.4
CVSS 3.1
Description
n8n before 2.25.7 and 2.26.x before 2.26.2 contains an authorization bypass in the Public API execution retry endpoint, which authorizes access using the workflow:read scope instead of workflow:execute. An authenticated user with read-only access to a shared workflow can use the Public API to retry executions of that workflow, bypassing the intended permission boundary between read and execute access. This affects instances where workflows are shared with other users or across projects.

Metadata

CVE ID
CVE-2026-56778
State
PUBLISHED
Assigner
VulnCheck
Reserved
2026-06-23 01:22 UTC
Published
2026-07-08 13:49 UTC
Last updated
2026-07-08 14:25 UTC
Primary CWE
CWE-863
Incorrect Authorization
Vendor / Product
n8n / n8n
Sources
cve.org  ·  NVD

Severity & Metrics

6.4 MEDIUM CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
SSVC — CISA Coordinator
Exploitation
none
Automatable
no
Tech. Impact
partial
Affected products (2)
VendorProductPlatformVersions
n8n n8n — 0 < 2.26.2, 2.26.2
n8n n8n — 0 < 2.25.7, 2.25.7
Weakness (CWE)
CWESourceDescription
CWE-863 cna Incorrect Authorization
CVSS scores (2)
ScoreSeverityVersionSourceVector
6.4 MEDIUM 3.1 cna CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
5.3 MEDIUM 4.0 cna CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
References (2)
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