High 7.7Published Jul 9, 2026

CVE-2026-59221Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform.

Updated under an hour ago (2026-10-19 08:00 UTC)

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It affects openwebui open_webui. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for openwebui open_webui

Exploited in the last 30 days

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.6 before 0.10.0, _sanitize_proxy_path in backend/open_webui/routers/terminals.py decoded proxy paths only eight times, allowing a nine-times percent-encoded ../ traversal value to pass normalization checks and be decoded by the upstream terminal server. This issue is fixed in version 0.10.0.

CVSS: 7.7 HIGH (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Weakness (CWE): CWE-22, CWE-918
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Not given
NVD analysis: Analyzed
Record last updated: Jul 10, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

openwebui open_webui openwebui:open_webui	0.9.6	NVD

References

https://github.com/open-webui/open-webui/commit/05098d25a58d03738e01c4e85e8852c3b4ad849cpatch
https://github.com/open-webui/open-webui/pull/26050issue-tracking, patch
https://github.com/open-webui/open-webui/releases/tag/v0.10.0product, release-notes
https://github.com/open-webui/open-webui/security/advisories/GHSA-frvj-c5qp-xj4wexploit, mitigation, vendor-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.