CVE-2025-25297Public exploitNetwork attack vector

Internal data disclosure via unvalidated S3 endpoint

Published Feb 14, 2025 · Updated Feb 14, 2025

SSRF in Label Studio before 1.16.0 allows remote authenticated users to read internal service responses through crafted S3 endpoints. The S3 storage integration passes the user-controlled s3_endpoint value directly to boto3, then exposes failed S3 call response bodies in errors. An account able to create storage and trigger synchronization can reach services behind network segmentation and disclose their returned data.

CVSS severity8.6
High
EPSS probability0.67%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SSRF in Label Studio before 1.16.0 allows remote authenticated users to read internal service responses through crafted S3 endpoints. The S3 storage integration passes the user-controlled s3_endpoint value directly to boto3, then exposes failed S3 call response bodies in errors. An account able to create storage and trigger synchronization can reach services behind network segmentation and disclose their returned data.

The record

CVE
CVE-2025-25297
Published
Feb 14, 2025
Updated
Feb 14, 2025
Vendor
HumanSignal
Product
Label Studio
Classifications
CWE-918, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 14, 2025CVE publishedPublication date reported by the CVE source.
  2. Feb 14, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 1.16.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

HumanSignal · Label Studioversion=< 1.16.0

Published CVSS scores

8.6GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
7.7NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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