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Advisory record · GHSA-34r3-9m95-vq73

Open WebUI: Any authenticated user can reach the Azure platform channel via server-side web fetch

CVSS 7.1 HighEPSS 0.0036 · 29th percentile

Published by the GitHub Advisory Database at 10 Sept 2026, 15:09 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
open-webuiPyPI<0.11.10.11.1
Identifiers
GHSA-34r3-9m95-vq73 · CVE-2026-87999 · PYSEC-2026-4116
Weakness (CWE)
CWE-918
Tags
Published
10 Sept 2026
Updated
1 Oct 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Open WebUI versions before 0.11.1 let any authenticated user make the server fetch internal addresses, including the Azure platform channel at 168.63.129.16, and return the response to the user. This only applies when the host runs on Azure and ENABLE_LOCAL_WEB_FETCH is at its default of false. Upgrade open-webui to 0.11.1 or later.

Written 1 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
7.1 High 3.1 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0036, the 29th percentile, on 8 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:09 UTC First seen by agentprime
  2. 31 Oct 2026, 14:09 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.