Label Studio is a multi-type data labeling and annotation tool. In 1.22.0 and earlier, a persistent stored cross-site scripting (XSS) vulnerability exists in the custom_hotkeys functionality of the application. An authenticated attacker (or one who can trick a user/administrator into updating their custom_hotkeys) can inject JavaScript code that executes in other users’ browsers when those users load any page using the templates/base.html template. Because the application exposes an API token endpoint (/api/current-user/token) to the browser and lacks robust CSRF protection on some API endpoints, the injected script may fetch the victim’s API token or call token reset endpoints — enabling full account takeover and unauthorized API access.
References
| Link | Resource |
|---|---|
| https://github.com/HumanSignal/label-studio/commit/ea2462bf042bbf370b79445d02a205fbe547b505 | Patch |
| https://github.com/HumanSignal/label-studio/pull/9084 | Issue Tracking |
| https://github.com/HumanSignal/label-studio/security/advisories/GHSA-2mq9-hm29-8qch | Exploit Vendor Advisory |
Configurations
History
27 Jan 2026, 20:39
| Type | Values Removed | Values Added |
|---|---|---|
| CPE | cpe:2.3:a:humansignal:label_studio:*:*:*:*:*:*:*:* | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.4 |
| First Time |
Humansignal label Studio
Humansignal |
|
| References | () https://github.com/HumanSignal/label-studio/commit/ea2462bf042bbf370b79445d02a205fbe547b505 - Patch | |
| References | () https://github.com/HumanSignal/label-studio/pull/9084 - Issue Tracking | |
| References | () https://github.com/HumanSignal/label-studio/security/advisories/GHSA-2mq9-hm29-8qch - Exploit, Vendor Advisory |
12 Jan 2026, 18:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-01-12 18:15
Updated : 2026-01-27 20:39
NVD link : CVE-2026-22033
Mitre link : CVE-2026-22033
CVE.ORG link : CVE-2026-22033
JSON object : View
Products Affected
humansignal
- label_studio