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CVE-2025-25297— Label Studio allows Server-Side Request Forgery in the S3 Storage Endpoint

Quick assessment

Affected
HumanSignal label-studio
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Label Studio是Heartex开源的一个开源数据标注工具。允许您使用简单明了的 UI 标记音频、文本、图像、视频和时间序列等数据类型，并导出为各种模型格式。 Label Studio 1.16.0之前版本存在代码问题漏洞，该漏洞源于S3存储集成端点配置未验证URL，会导致服务器端请求伪造及数据泄露。

CVSS 8.6 · High EPSS 0.67% · P50
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I. Basic Information for CVE-2025-25297

Vulnerability Information
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Vulnerability Title
Label Studio allows Server-Side Request Forgery in the S3 Storage Endpoint
Source: CVE Program / CVE List V5
Vulnerability Description
Label Studio is an open source data labeling tool. Prior to version 1.16.0, Label Studio's S3 storage integration feature contains a Server-Side Request Forgery (SSRF) vulnerability in its endpoint configuration. When creating an S3 storage connection, the application allows users to specify a custom S3 endpoint URL via the s3_endpoint parameter. This endpoint URL is passed directly to the boto3 AWS SDK without proper validation or restrictions on the protocol or destination. The vulnerability allows an attacker to make the application send HTTP requests to arbitrary internal services by specifying them as the S3 endpoint. When the storage sync operation is triggered, the application attempts to make S3 API calls to the specified endpoint, effectively making HTTP requests to the target service and returning the response in error messages. This SSRF vulnerability enables attackers to bypass network segmentation and access internal services that should not be accessible from the external network. The vulnerability is particularly severe because error messages from failed requests contain the full response body, allowing data exfiltration from internal services. Version 1.16.0 contains a patch for the issue.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5
Vulnerability Title
Label Studio 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Label Studio是Heartex开源的一个开源数据标注工具。允许您使用简单明了的 UI 标记音频、文本、图像、视频和时间序列等数据类型，并导出为各种模型格式。 Label Studio 1.16.0之前版本存在代码问题漏洞，该漏洞源于S3存储集成端点配置未验证URL，会导致服务器端请求伪造及数据泄露。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
HumanSignal label-studio < 1.16.0 -

II. Public POCs for CVE-2025-25297

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III. Intelligence Information for CVE-2025-25297

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Patches & Fixes for CVE-2025-25297 (1)

Vendor Advisories for CVE-2025-25297 (1)

Same Patch Batch · HumanSignal · 2025-02-14 · 3 CVEs total

CVE-2025-25296 6.1 MEDIUM Label Studio allows Cross-Site Scripting (XSS) via GET request to `/projects/upload-exampl
CVE-2025-25295 Label Studio has a Path Traversal Vulnerability via image Field

IV. Related Vulnerabilities

Same product: label-studio
Same vendor: HumanSignal
Same weakness: CWE-918

V. Comments for CVE-2025-25297

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