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Advisory record · GHSA-8r35-5x5r-hv74

Open WebUI: Any authenticated user can start a non-terminating request via a folder parent cycle

CVSS 4.3 MediumEPSS 0.0048 · 42nd percentile

Published by the GitHub Advisory Database at 10 Sept 2026, 22:42 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
open-webuiPyPI>=0.10.0, <0.11.10.11.1
Identifiers
GHSA-8r35-5x5r-hv74 · CVE-2026-87013 · PYSEC-2026-4121
Weakness (CWE)
CWE-835
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 0.10.0 up to but not including 0.11.1 are vulnerable. Any authenticated user with the folders feature permission (enabled by default) can re-parent a folder under itself, creating a loop that makes a single request never finish, consuming a CPU core and growing memory until restart. Upgrade to Open WebUI 0.11.1, which rejects such moves and skips already-visited folders.

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
4.3 Medium 3.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0048, the 42nd percentile, on 14 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.