CVE-2026-85179: Server-Side Request Forgery (SSRF) in HumanSignal label-studio
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.
CVE-2026-85179: Server-Side Request Forgery (SSRF) in HumanSignal label-studio
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.
CVSS v4.0
Score 8.4high
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-09-03T11:08:17.526Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a9982b8acd9273b4909fd6f
Added to database: 09/03/2026, 14:22:48 UTC
Last updated: 09/04/2026, 03:26:44 UTC
Views: 12
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