WS-2026-0098
Published:October 06, 2026
Updated:October 07, 2026
Harbor from 1.9.0-rc1 before 2.13.6, 2.14.x before 2.14.5 and 2.15.x before 2.15.3 does not restrict webhook (HTTP and Slack) target addresses. A project administrator, which by default is any user who can create a project, can point a webhook at loopback, private, link-local or cloud metadata addresses (169.254.169.254), and Harbor's jobservice will send POST requests to those internal services. Error responses from the target can be written to the webhook execution log, which project members can read.
Affected Packages
https://github.com/goharbor/harbor.git (GITHUB):
Affected version(s) >=v2.15.0-rc1 <v2.15.3Fix Suggestion:
Update to version v2.15.3https://github.com/goharbor/harbor.git (GITHUB):
Affected version(s) >=v1.9.0-rc1 <v2.13.6Fix Suggestion:
Update to version v2.13.6https://github.com/goharbor/harbor.git (GITHUB):
Affected version(s) >=v2.14.0-rc1 <v2.14.5Fix Suggestion:
Update to version v2.14.5github.com/goharbor/harbor (GO):
Affected version(s) >=v2.14.0-rc1 <v2.14.5Fix Suggestion:
Update to version v2.14.5github.com/goharbor/harbor (GO):
Affected version(s) >=v2.15.0-rc1 <v2.15.3Fix Suggestion:
Update to version v2.15.3github.com/goharbor/harbor (GO):
Affected version(s) >=v1.9.0-rc1 <v2.13.6Fix Suggestion:
Update to version v2.13.6Related Resources (5)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.4
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
LOW
Vulnerable System Availability
NONE
Subsequent System Confidentiality
HIGH
Subsequent System Integrity
LOW
Subsequent System Availability
NONE
CVSS v3
Base Score:
8.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
LOW
Availability
NONE
Weakness Type (CWE)
Server-Side Request Forgery (SSRF)