CVE-2026-87996

    Dashboard / Vulnerabilities / CVE-2026-87996

    CVE-2026-87996

    Published: 9 Sept 2026Last Modified: 12 Sept 2026

    Summary: Open WebUI: SSRF into internal services via DNS rebinding in the Playwright web loader

    Details: 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.

    References: https://github.com/open-webui/open-webui/releases/tag/v0.11.1, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/87xxx/CVE-2026-87996.json, https://github.com/open-webui/open-webui/security/advisories/GHSA-4v28-j6q3-5m4r, https://nvd.nist.gov/vuln/detail/CVE-2026-87996, https://github.com/open-webui/open-webui/commit/27402ff210bfa253445720920dfb86b15a00327b, https://github.com/open-webui/open-webui/pull/28634

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 1a97751e376e00a1897bc3679215ae1c7bd8fd42
    Fixed -27402ff210bfa253445720920dfb86b15a00327b

    Affected versions

    v0.9.6

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2026-87996 | CVE-DB