CVE-2026-85179 Details
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.
A server-side request forgery (SSRF) vulnerability has been identified in Label Studio versions through 1.23.0. This issue arises because the application does not properly validate webhook URLs, allowing authenticated users to send requests to internal services, including private network addresses and cloud metadata endpoints. Exploitation of this vulnerability could lead to unauthorized access to internal resources and sensitive data exfiltration.
Users can update to Label Studio version 1.23.1 or later, where this vulnerability has been addressed.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Sep 3, 2026CISA-ADP
Assessed Sep 5, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/HumanSignal/label-studio | [email protected] | ProductSource CodeVendor |
| https://github.com/HumanSignal/label-studio/blob/1.23.0/label_studio/webhooks/utils.py | [email protected] | Source CodeVendor |
| https://github.com/HumanSignal/label-studio/commit/2c1c1d6472153032af8ed399168f814bea854e3e | [email protected] | Source CodeVendor |
| https://github.com/HumanSignal/label-studio/issues/9801 | [email protected] | ExploitIssue TrackingTechnical DescriptionVendor |
| https://www.vulncheck.com/advisories/label-studio-through-1.23.0-ssrf-via-unvalidated-webhook-url | [email protected] | AdvisoryBundleRemedy |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-918 | Server-Side Request Forgery (SSRF) | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| HumanSignal Label Studio | <= 1.23.0 (semver) |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 5, 2026 | CVE Modified | CISA-ADP |
| Sep 3, 2026 | New CVE Received | [email protected] |