CVE-2026-44562: open-webui · Missing Authorization
Affects open-webuiSource GCVE Database
Not known to be exploited · CVSS 6.5 Medium : upgrade to 0.9.0 when convenient.
Data as of 12 Nov 2026, 00:18 UTC
Thin evidence
One scorer or none| CNA (GitHub_M) | CVSS 3.1 | 6.5 |
|---|
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 21% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 0.9.0
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:NExploitation evidence
Disclosed: evidence found.
CVE published 15 May 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 11 Nov 2026.
What to do
Upgrade open-webui to 0.9.0.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| open-webui open-webui | Affected
| Fixed in
|
AI-suggested
Upgrade Open WebUI to version 0.9.0 or later, where this authorization bypass vulnerability has been fixed. No other mitigation is required as the fix addresses the root cause by enforcing proper ownership and access grant validation on the import endpoint.
Description
Open WebUI versions prior to 0.9.0 contain an authorization bypass vulnerability in the POST /api/v1/models/import endpoint. This flaw allows users with the workspace.models_import permission to overwrite any existing model in the database regardless of ownership. The endpoint merges the attacker's payload over existing model data without validating ownership or access grants, bypassing normal access control checks. This vulnerability is fixed in version 0.9.0.