Public proof of conceptFix available

CVE-2026-34222

Q: Is CVE-2026-34222 actively exploited?

A proof-of-concept exploit exists for CVE-2026-34222, but active exploitation has not been confirmed at this time.

Q: What is the CVSS score for CVE-2026-34222?

CVE-2026-34222 has a CVSS v3 base score of 7.7 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N.

A public proof of concept exists; no exploitation attested.

Published2026-04-01
Fixed in0.8.11
WeaknessCWE-285

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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.

Timeline

dates in UTC

2026-04-0118:16CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-25 15:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2026-34222?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2026-34222?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD · OSV

Openwebui open webui

Branch	Affected	Fixed in	Source
0.8	< 0.8.11	0.8.11	NVD · OSV

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Update Openwebui open webui to 0.8.11

Advisories and patches

github.comRelease Notes
github.comVendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

CISA-ADPSSVC decisionpoc2026-04-04
OpenCVESSVC decisionpoc—
CNACVSS 3.17.7read 2026-10-23
NVDCVSS 3.17.7read 2026-10-23
CNAweakness (CWE)CWE-285read 2026-10-23
FIRST EPSSEPSS score5.0 %2026-10-25
OSVaffected packages—

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Published: 2026-04-01
Last Modified: 2026-06-17
NVD status: Analyzed

Frequently asked questions

What is CVE-2026-34222?

Is CVE-2026-34222 actively exploited?

A proof-of-concept exploit exists for CVE-2026-34222, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2026-34222?

CVE-2026-34222 has a CVSS v3 base score of 7.7 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N.

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