CVE-2026-102478 Octopus Server - Broken Access Control

Octopus Server contains a broken access control vulnerability caused by improper validation of unsafe equivalence in inputs, letting authenticated users with role modification permissions escalate privileges by weakening built-in roles and adding themselves to privileged teams.

CVSS base score 8.7 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.29% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Broken Access Control
Impact
Privilege Escalation
CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/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
Published
7 October 2026
Updated
15 October 2026
Weakness
CWE-1289

Vendor fix

Update to the latest version of Octopus Server.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

← All CVEs