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.

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact High

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Changed

Confidentiality Impact High

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
HumanSignal label-studio unaffected
Version Status Constraints
0 affected < 1.23.2
HumanSignal label-studio-sdk unaffected
Version Status Constraints
0 affected < 2.1.2

No data.

No data.

No data.

Project Subscriptions

Vendors Products
Humansignal Subscribe
Label Studio Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/HumanSignal/label-studio-sdk/blob/2.1.1/src/label_studio_sdk/_extensions/label_studio_tools/core/utils/io.py#L299-L338 cve-icon cve-icon
https://github.com/HumanSignal/label-studio-sdk/blob/2.1.1/src/label_studio_sdk/_extensions/label_studio_tools/core/utils/io.py#L62-L71 cve-icon cve-icon
https://github.com/HumanSignal/label-studio-sdk/commit/c20c899aaaa302740dacd46a47e5774bb677561f cve-icon cve-icon
https://github.com/HumanSignal/label-studio/blob/1.23.1/label_studio/data_export/models.py#L160-L167 cve-icon cve-icon
https://github.com/HumanSignal/label-studio/commit/df96d79183156e556d91825d15fa7721f1145e1a cve-icon cve-icon
https://github.com/HumanSignal/label-studio/security/advisories/GHSA-6437-7wc6-gmx5 cve-icon cve-icon
https://www.vulncheck.com/advisories/label-studio-before-1.23.2-ssrf-and-token-disclosure-via-image-export-downloads cve-icon cve-icon
History

Tue, 03 Nov 2026 15:30:00 +0000

Type Values Removed Values Added
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.
Title Label Studio before 1.23.2 SSRF and Token Disclosure via Image Export Downloads
First Time appeared Humansignal
Humansignal label Studio
Weaknesses CWE-918
CPEs cpe:2.3:a:humansignal:label_studio:*:*:*:*:*:*:*:*
Vendors & Products Humansignal
Humansignal label Studio
References
Metrics cvssV3_1

{'score': 7.7, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N'}

cvssV4_0

{'score': 6.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:H/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-11-03T15:17:17.112Z

Reserved: 2026-11-03T14:46:18.296Z

Link: CVE-2026-121561

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-11-03T16:17:28.940

Modified: 2026-11-03T16:30:17.150

Link: CVE-2026-121561

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses