CVE-2026-85179 Label Studio through 1.23.0 SSRF via Unvalidated Webhook URL
Authenticated users can exploit unvalidated webhook URLs to access internal services and exfiltrate annotation data via Server-Side Request Forgery.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-85179?
CVE-2026-85179 is a high-severity server-side request forgery vulnerability in HumanSignal label-studio, published on 3 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-918
Which versions are affected by CVE-2026-85179?
How do I fix CVE-2026-85179?
Apply the vendor's patch.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2026-85179 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-85179 exists.
Sources
Also known as GHSA-93hf-p7mp-qw5g, MINI-f7x4-ch3v-83x6.