Vulnerability Description
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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Humansignal | Label Studio | <= 1.22.0 |
Related Weaknesses (CWE)
References
- https://github.com/HumanSignal/label-studio/commit/ea2462bf042bbf370b79445d02a20Patch
- https://github.com/HumanSignal/label-studio/pull/9084Issue Tracking
- https://github.com/HumanSignal/label-studio/security/advisories/GHSA-2mq9-hm29-8ExploitVendor Advisory
FAQ
What is CVE-2026-22033?
CVE-2026-22033 is a vulnerability with a CVSS score of 5.4 (MEDIUM). 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 ap...
How severe is CVE-2026-22033?
CVE-2026-22033 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-22033?
Check the references section above for vendor advisories and patch information. Affected products include: Humansignal Label Studio.