Vulnerability record · CVE-2026-85179 · published 3 September 2026

CVE-2026-85179: Server-side request forgery (SSRF) vulnerability

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.

8.4 CVSS 4.0 High EPSS 0.40% · top 68.2% CWE-918 · Server-side request forgery (SSRF) Deferred

8.4CVSS 4.0 base score

0.40%EPSS exploitation probability, 30 days

NoNot in CISA KEV

0Affected product versions listed by NVD

5References

24 Sep 2026Last modified by NVD

Description

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

Link	Tags
https://github.com/HumanSignal/label-studio
https://github.com/HumanSignal/label-studio/blob/1.23.0/label_studio/webhooks/utils.py
https://github.com/HumanSignal/label-studio/commit/2c1c1d6472153032af8ed399168f814bea854e3e
https://github.com/HumanSignal/label-studio/issues/9801
https://www.vulncheck.com/advisories/label-studio-through-1.23.0-ssrf-via-unvalidated-webhook-url

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-85179), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.