CVSS 4.0
5.3 mediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:NCVE-2026-56399
Medium (5.3). EPSS 0.5% chance of exploitation in the next 30 days.
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.
Severity
CVSS 3.1
5.0 mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N- EPSS
- 0.5% chance of exploitation in the next 30 days; higher than 39% of CVEs (scores of 2026-10-31)
- CWE
- CWE-918
- Published
- Modified
- Record from
- the NVD, synced
References
- https://github.com/open-webui/open-webui/commit/02238d3113e966c353fce18f1b65117380896774
- https://github.com/open-webui/open-webui/security/advisories/GHSA-82r6-c5jm-f3mw
- https://www.vulncheck.com/advisories/open-webui-server-side-request-forgery-via-location-redirect-in-api-v1-retrieval-process-web
- https://github.com/open-webui/open-webui/security/advisories/GHSA-82r6-c5jm-f3mw