CVE-2026-44721: open-webui · Cross-site Scripting
Affects open-webuiSource GCVE Database
Not known to be exploited · CVSS 7.3 High : upgrade to 0.9.0 soon.
Data as of 12 Nov 2026, 00:17 UTC
Thin evidence
One scorer or none| CNA (GitHub_M) | CVSS 3.1 | 7.3 |
|---|
- EPSS
- 0.3% chance of exploitation in 30 days – higher than 23% 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:R/S:U/C:H/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 vulnerability is fixed. No additional vendor advisories indicate alternative mitigations or that no action is required.
Description
Open WebUI versions prior to 0.9.0 contain a stored cross-site scripting (XSS) vulnerability. This flaw allows any authenticated user with model creation permissions to inject arbitrary JavaScript that executes in the browsers of other users, including administrators, when they view the malicious model in the chat UI. The vulnerability is resolved in version 0.9.0.