CVE-2026-34222: Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline

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HIGH 7.7UPGRADE

CVE-2026-34222 is a high-severity flaw (CVSS 7.7) affecting open webui. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to version 0.8.11, there is a broken access control vulnerability in tool values. This issue has been patched in version 0.8.11.

Why this priority

High severity
EPSS top 8%: very likely to be exploited
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	7.7 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	5.0% (top 8%)
CISA exploited list	No
Weakness	CWE-285
Published	2026-04-01
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: openwebui

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-01 18:16 UTCPublished CVE record published
2026-06-17 10:38 UTCUpdated Record last modified

openwebui open webui UPGRADE

Affected: < 0.8.11

Fixed in: 0.8.11

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy open-webui || rpm -q open-webui || open-webui --version

2. UPGRADE to 0.8.11 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade open-webui

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade open-webui

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Exact fixes by distribution

Python (pip) · open-webui · FIXED · 0.8.11 · vulnerable: < 0.8.11 · source

pip install --upgrade "open-webui>=0.8.11" pip show open-webui

Fedora ELN · fonttools · FIXED · 4.68.0-1.eln159 · FEDORA-2026-37fa4b964c · source

sudo dnf upgrade --advisory=FEDORA-2026-37fa4b964c

Fedora 46 · fonttools · FIXED · 4.68.0-1.fc46 · FEDORA-2026-65d6c01c75 · source

sudo dnf upgrade --advisory=FEDORA-2026-65d6c01c75

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Write-up: github.com/open-webui/open-webui/security/advisories/GHSA-7429-hxcv-268m

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-34222?

open webui: upgrade to 0.8.11. Exact commands for each OS are on this page.

Is CVE-2026-34222 being exploited?

CVE-2026-34222 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-34222 affect?

CVE-2026-34222 affects open webui. Severity is high (CVSS 7.7). Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to version 0.8.11, there is a broken access control vulnerability in tool values. This issue has been patched in version 0.8.11.

How urgent is CVE-2026-34222?

Priority 55/100. High severity; EPSS top 8%: very likely to be exploited; Public exploit reference

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CVE-2026-70489 MEDIUM 6.5 UPGRADE Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform
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References

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