CVE-2026-85179

high

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.

References

https://www.vulncheck.com/advisories/label-studio-through-1.23.0-ssrf-via-unvalidated-webhook-url

https://github.com/HumanSignal/label-studio/issues/9801

https://github.com/HumanSignal/label-studio/commit/2c1c1d6472153032af8ed399168f814bea854e3e

https://github.com/HumanSignal/label-studio/blob/1.23.0/label_studio/webhooks/utils.py

https://github.com/HumanSignal/label-studio

Details

Source: Mitre, NVD

Published: 2026-09-03

Updated: 2026-09-05

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:P/A:N

Severity: High

CVSS v3

Base Score: 8.5

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N

Severity: High

CVSS v4

Base Score: 8.4

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N

Severity: High

EPSS

EPSS: 0.0023