CVE-2026-121561
Published:November 03, 2026
Updated:November 04, 2026
Label Studio before 1.23.2 (label-studio-sdk before 2.1.2) contains a server-side request forgery vulnerability that allows authenticated users to read internal URLs through image-bearing export formats. Attackers can import tasks with data.image pointing at internal services, export as YOLO or COCO with images to read responses, and spoof Host to capture the organization owner's API token.
Affected Packages
https://github.com/HumanSignal/label-studio.git (GITHUB):
Affected version(s) >=v1.0.0 <1.23.2 || >=1.6.0 <1.23.2Fix Suggestion:
Update to version 1.23.2https://github.com/HumanSignal/label-studio-sdk.git (GITHUB):
Affected version(s) >=1.0.0 <2.1.2 || >=2.0.0 <2.1.2Fix Suggestion:
Update to version 2.1.2label-studio-sdk (PYTHON):
Affected version(s) >=1.0.0 <2.1.2 || >=2.0.0 <2.1.2Fix Suggestion:
Update to version 2.1.2label-studio (PYTHON):
Affected version(s) >=0.4.0rc1 <1.23.2 || >=1.0.0 <1.23.2Fix Suggestion:
Update to version 1.23.2Related Resources (11)
Do you need more information?
Contact UsCVSS v4
Base Score:
6.3
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
HIGH
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.7
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
Server-Side Request Forgery
EPSS
Base Score:
0.43