CVE-2026-77079
HIGH
MEDIUM
Priority: 0.03
BB Relevance:
65/100
Published: 2026-08-20
Modified: 2026-10-24
First seen: 2026-10-29
Status: active
Attack Surface
Network
Low Complexity
No Interaction
Conf. Impact
CVSS Vector Breakdown
AV:
Network
AC:
Low
PR:
Low
UI:
None
S:
X
AT:
Present
VC:
High
VI:
Low
VA:
Low
Description
n8n before 2.34.1 and 2.33.4 contains an authorization bypass in the custom project role deletion (reassignment) path. When deleting a custom project role with a reassignment target, the code validated only that the target role existed and was project-scoped, performing no project-level authorization check. A user holding only the narrow role:manageProject global scope could delete any custom project role in use on the instance and reassign its holders (including themselves) to the built-in project:admin role, gaining full administrative control of projects they had no legitimate access to.
Weakness Classification (1)
References & Advisories (2)
Third Party Advisory
Mitigation
Vendor Advisory