[ CVE-2026-121561 · Published 3 Nov 2026 ]
Vulnerability in HumanSignal label-studio
CVSS 7.7
EPSS <1%No fix listed yet
[ Description ]Official description
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.
[ Fixes ]Fixes and patches
No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.
[ References ]References
- github.com/HumanSignal/label-studio-sdk/blob/2.1.1/src/label_studio_sdk/_extensions/lab…
- github.com/HumanSignal/label-studio-sdk/blob/2.1.1/src/label_studio_sdk/_extensions/lab…
- github.com/HumanSignal/label-studio-sdk/commit/c20c899aaaa302740dacd46a47e5774bb677561f
- github.com/HumanSignal/label-studio/blob/1.23.1/label_studio/data_export/models.py
- github.com/HumanSignal/label-studio/commit/df96d79183156e556d91825d15fa7721f1145e1a
- github.com/HumanSignal/label-studio/security/advisories/GHSA-6437-7wc6-gmx5
- www.vulncheck.com/advisories/label-studio-before-1.23.2-ssrf-and-token-disclosure-via-i…