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    CVE-2026-56399

    Open WebUI before 0.6.27 contains a server-side request forgery vulnerability in the /api/v1/retrieval/process/web endpoint that allows authenticated users to bypass SSRF protections. Attackers can manipulate URL parameters with location redirect headers to access internal services and potentially execute commands via instance secrets.

    Published:Jun 30, 2026
    Last Modified:Jul 1, 2026
    EPS:Jun 30, 2026
    EPSS Score:0.0032
    CVSS Score:5

    Affected Products

    Vendor
    Openwebui
    Product
    Open Webui

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-664 Server Side Request Forgery

    Related CVEs

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    CVE-2026-56398 (CVSS 8.5) — Open WebUI before 0.9.5 contains a stored cross-site scripting vulnerability in the OAuth authentication flow …
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    CVE-2026-44549 (CVSS 7.3) — Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.…
    CVE-2026-45299 (CVSS 5.4) — Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.…
    CVE-2026-45665 (CVSS 8.1) — Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.…
    CVE-2026-45667 (CVSS 6.5) — Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.…
    CVE-2026-44565 (CVSS 8.1) — Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.…
    CVE-2026-45314 (CVSS 7.4) — Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.…
    CVE-2026-45316 (CVSS 3.5) — Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.…

    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