CVE-2026-87996
Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.6 until 0.11.1, SafePlaywrightURLLoader in backend/open_webui/retrieval/web/utils.py validated a user-controlled hostname in Python and then let the Playwright browser resolve it again in the sync and async request interceptors. An authenticated user controlling authoritative DNS could return a public address to validation and an internal address to the browser, exposing responses from internal services or cloud metadata through web search or URL ingestion. This issue is fixed in version 0.11.1.
Not on KEV
Not in CISA's Known Exploited Vulnerabilities catalogue as of the last daily pull. Absence is not proof of safety.
0%
Chance of exploitation in the next 30 days, 11th percentile of all CVEs. A forecast; KEV outranks it.
7.7
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
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No exposure census on this CVE's dispatches.
- nvd.nist.gov ↗
- first.org · EPSS ↗
- github.com/open-webui/open-webui/commit/27402ff210bfa253445720920dfb86b15a00327b ↗
- github.com/open-webui/open-webui/pull/28634 ↗
- github.com/open-webui/open-webui/releases/tag/v0.11.1 ↗
- github.com/open-webui/open-webui/security/advisories/GHSA-4v28-j6q3-5m4r ↗
- github.com/open-webui/open-webui/security/advisories/GHSA-4v28-j6q3-5m4r ↗
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