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CVE-2026-56399 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

VolerionCVSS-B:6 MEDIUMVector:CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L

CNA: [email protected]CVSS-B:5 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/open-webui/open-webui/security/advisories/GHSA-82r6-c5jm-f3mw	CISA-ADP	AdvisoryBundleExploitRemedyVendor
https://github.com/open-webui/open-webui/commit/02238d3113e966c353fce18f1b65117380896774	[email protected]	Source CodeVendor
https://github.com/open-webui/open-webui/security/advisories/GHSA-82r6-c5jm-f3mw	[email protected]	AdvisoryBundleExploitRemedyVendor
https://www.vulncheck.com/advisories/open-webui-server-side-request-forgery-via-location-redirect-in-api-v1-retrieval-process-web	[email protected]	Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-918	Server-Side Request Forgery (SSRF)	[email protected]

Affected Products

Product	Versions
Open WebUI	<= 0.6.26 (semver)
CPE cpe:2.3:a:openwebui:open_webui:::::::: Remediation Upgrade: 0.6.27moderate effort

Change History

2 change records found show changes

Date	Action	Recorded By
Jul 1, 2026	CVE Modified	CISA-ADP
Jun 30, 2026	New CVE Received	[email protected]