High severity7.3GHSA Advisory· Published May 15, 2026· Updated May 19, 2026
CVE-2026-44549
CVE-2026-44549
Description
Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.8.0, Excel file attachments are previewed in an unsafe way. A crafted XLSX file payload can be used to cause the sheetjs function sheet_to_html to embed an XSS payload into the generated HTML. This is subsequently added to the DOM unsanitized via @html causing the payload to trigger. This vulnerability is fixed in 0.8.0.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
open-webuiPyPI | < 0.8.0 | 0.8.0 |
Affected products
2<= 0.7.2+ 1 more
- (no CPE)range: <= 0.7.2
- cpe:2.3:a:openwebui:open_webui:*:*:*:*:*:*:*:*range: <0.8.0
Patches
Vulnerability mechanics
References
3- github.com/open-webui/open-webui/security/advisories/GHSA-jwf8-pv5p-vhmcnvdExploitVendor AdvisoryWEB
- github.com/advisories/GHSA-jwf8-pv5p-vhmcghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-44549ghsaADVISORY
News mentions
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