{"id":"CVE-2026-56399","summary":"Open WebUI - Server-Side Request Forgery via Location Redirect in /api/v1/retrieval/process/web","details":"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.","aliases":["GHSA-82r6-c5jm-f3mw"],"modified":"2026-07-15T01:49:22.550652720Z","published":"2026-06-30T22:08:40.248Z","database_specific":{"cwe_ids":["CWE-918"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/56xxx/CVE-2026-56399.json","cna_assigner":"VulnCheck"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/56xxx/CVE-2026-56399.json"},{"type":"ADVISORY","url":"https://github.com/open-webui/open-webui/security/advisories/GHSA-82r6-c5jm-f3mw"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-56399"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/open-webui-server-side-request-forgery-via-location-redirect-in-api-v1-retrieval-process-web"},{"type":"FIX","url":"https://github.com/open-webui/open-webui/commit/02238d3113e966c353fce18f1b65117380896774"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/open-webui/open-webui","events":[{"introduced":"0"},{"fixed":"918f507d8cdc652ae913b8596877a8a50b845114"},{"fixed":"02238d3113e966c353fce18f1b65117380896774"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"0.6.27"}],"source":["DESCRIPTION","REFERENCES"]}}],"versions":["v0.6.26","v0.6.25","v0.6.24","v0.6.23","v0.6.22","v0.6.21","v0.6.20","v0.6.19","v0.6.18","v0.6.17","v0.6.16","v0.6.15","v0.6.14","v0.6.13","v0.6.12","v0.6.11","v0.6.10","v0.6.9","v0.6.8","v0.6.7","v0.6.6","v0.6.5","v0.6.4","v0.6.3","v0.6.2","v0.6.1","v0.6.0","v0.5.16","v0.5.20","v0.5.19","v0.5.18","v0.5.17","v0.5.15","v0.5.14","v0.5.12","v0.5.13","v0.5.11","v0.5.10","v0.5.9","v0.5.8","v0.5.7","v0.5.6","v0.5.5","v0.5.4","v0.5.3","v0.5.2","v0.5.1","v0.5.0","v0.4.8","v0.4.7","v0.4.6","v0.4.5","v0.4.4","v0.4.3","v0.4.2","v0.4.1","v0.4.0","v0.3.35","v0.3.34","v0.3.33","v0.3.32","v0.3.31","v0.3.30","v0.3.29","v0.3.28","v0.3.27","v0.3.26","v0.3.25","v0.3.24","v0.3.23","v0.3.22","v0.3.21","v0.3.20","v0.3.19","v0.3.18","v0.3.17","v0.3.16","v0.3.15","v0.3.14","v0.3.13","v0.3.12","v0.3.11","v0.3.10","v0.3.9","v0.3.8","v0.3.7","v0.3.6","v0.3.5","v0.3.4","v0.3.3","v0.3.2","v0.3.1","v0.3.0","v0.2.5","v0.2.4","v0.2.3","v0.2.2","v0.2.1","v0.2.0","v0.1.125","v0.1.124","v0.1.123","v0.1.122","v0.1.114","v0.1.121","v0.1.120","v0.1.119","v0.1.118","v0.1.117","v0.1.116","v0.1.115","v0.1.108","v0.1.113","v0.1.112","v0.1.111","v0.1.110","v0.1.109","v0.1.107","v0.1.106","v0.1.105","v0.1.104","v0.1.103","v0.1.102"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-56399.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N"}]}