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CVE-2026-85179— Label Studio through 1.23.0 SSRF via Unvalidated Webhook URL

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.

HumanSignal Label Studio是HumanSignal公司开源的一个数据标注平台。 HumanSignal Label Studio 1.23.0及之前版本存在服务端请求伪造漏洞，该漏洞源于未对Webhook URL进行验证，可能导致认证用户向内部服务（包括RFC 1918地址和云元数据端点）发起请求，并通过启用出站请求中的有效载荷传输窃取注释数据。

CVSS 8.5 · High EPSS 0.40% · P32

Affected Version Matrix 1

VendorProduct Version RangeStatus
HumanSignal label-studio ≤ 1.23.0 affected
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I. Basic Information for CVE-2026-85179

Vulnerability Information
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Vulnerability Title
Label Studio through 1.23.0 SSRF via Unvalidated Webhook URL
Source: CVE Program / CVE List V5
Vulnerability Description
Label Studio through 1.23.0 fails to validate webhook URLs, allowing authenticated users to dispatch requests to internal services including RFC 1918 addresses and cloud metadata endpoints. Attackers can create webhooks targeting private networks and exfiltrate annotation data by enabling payload transmission in outbound requests.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/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
HumanSignal Label Studio 服务端请求伪造漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
HumanSignal Label Studio是HumanSignal公司开源的一个数据标注平台。 HumanSignal Label Studio 1.23.0及之前版本存在服务端请求伪造漏洞，该漏洞源于未对Webhook URL进行验证，可能导致认证用户向内部服务（包括RFC 1918地址和云元数据端点）发起请求，并通过启用出站请求中的有效载荷传输窃取注释数据。
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 0 ~ 1.23.0 -

II. Public POCs for CVE-2026-85179

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III. Intelligence Information for CVE-2026-85179

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Patches & Fixes for CVE-2026-85179 (1)

Vendor Advisories for CVE-2026-85179 (2)

Vendor Pages for CVE-2026-85179 (1)

Other References for CVE-2026-85179 (1)

IV. Related Vulnerabilities

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

V. Comments for CVE-2026-85179

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