CVE-2026-34222 json
Open WebUI has Broken Access Control in Tool Valves
published 2026-04-01 7 mo ago modified 2026-07-13 3 mo ago also EUVD-2026-17977 , GHSA-7429-hxcv-268m , PYSEC-2026-2709
- cvss
- 7.7
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 5.1%
- EPSS 5.1% chance of exploitation in 30 days, percentile 92%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- pypi open-webui 0.8.11
- openwebui open_webui 0.8.11
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- partial
- Assessed
- 7 mo ago
Exploit prediction
5.10% chance of exploitation in the next 30 days, higher than 92% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- seclists.org http://seclists.org/fulldisclosure/2026/Apr/4 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.7 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N |
| GitHub | 3.1 | 7.7 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N |
| NVD | 3.1 | 7.7 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N |
| OSV | 3.1 | 7.7 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | open-webui | <0.8.11 |
0.8.11 |
Affected products
- open-webui open-webui
Classification
- Weakness
-
- CWE-285 Improper Authorization
References
-
seclists.org
/fulldisclosure/2026/Apr/4
web, exploit, mailing-list, third-party-advisory
-
github.com
/open-webui/open-webui/security/advisories/GHSA-7429-hxcv-268m
web, vendor-advisory
-
github.com
/open-webui/open-webui/releases/tag/v0.8.11
web, release-notes
-
nvd.nist.gov
/vuln/detail/CVE-2026-34222
advisory
-
github.com
/open-webui/open-webui
package
-
pypi.org
/project/open-webui
package
-
github.com
/advisories/GHSA-7429-hxcv-268m
advisory
Sources
- CVE List CVE-2026-34222
- GitHub Advisory GHSA-7429-hxcv-268m
- NVD CVE-2026-34222
- OSV PYSEC-2026-2709
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.