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TI-2026-17727 Aliases CVE-2026-22033GHSA-2mq9-hm29-8qch

Label Studio vulnerable to full account takeover by chaining Stored XSS + IDOR in User Profile via custom_hotkeys field

Priority HIGH 70CWE-284Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Security bypass, Cross-site scripting
Confidentiality · integrity · availability
High · High · None
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-284 and CWE-79.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00279 20th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
HumanSignallabel-studioup to 1.22.0—No fix listedCNA
—label-studio (PyPI)up to 1.22.0—No fix listedGHSA-2mq9-hm29-8qch
  • label-studio VendorHumanSignal Affected up to 1.22.0 Fixed in — No fix listed CNA
  • label-studio (PyPI) Vendor— Affected up to 1.22.0 Fixed in — No fix listed GHSA-2mq9-hm29-8qch

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:humansignal:label_studio:*:*:*:*:*:*:*:*up to 1.22.0VulnerableHumanSignal
  • cpe:2.3:a:humansignal:label_studio:*:*:*:*:*:*:*:* Versions up to 1.22.0 Vulnerable ·HumanSignal

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-22033
  2. 2026-10-03 Alias added: GHSA-2mq9-hm29-8qch

References

Exploit 1

Patch 1

Advisory 1

Other 3

  • TI-2023-23482 Label Studio has Hardcoded Django `SECRET_KEY` that can be Abused to Forge Session Tokens CVSS 3.1CRITICAL 9.8
  • TI-2025-18951 Label Studio allows Server-Side Request Forgery in the S3 Storage Endpoint CVSS 3.1HIGH 8.6
  • TI-2023-25457 Object Relational Mapper Leak Vulnerability in Filtering Task in Label Studio CVSS 3.1HIGH 7.5
  • TI-2025-30248 label-studio vulnerable to Cross-Site Scripting (Reflected) via the label_config parameter. CVSS 4.0HIGH 7.6
  • TI-2023-25455 Label Studio XSS Vulnerability on Avatar Upload CVSS 3.1HIGH 7.1
  • TI-2025-18950 Label Studio allows Cross-Site Scripting (XSS) via GET request to `/projects/upload-example` endpoint CVSS 3.1MEDIUM 6.1
See all 9 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences