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Because the terminal proxy route in terminals.py checks access only on the first message, deactivated users can keep running commands and reading or writing files on the terminal server.","state":0,"publishedAt":"2026-10-12T16:04:51.02+00:00","modifiedAt":"2026-10-23T21:57:53.211+00:00","affected":[{"ecosystem":"Vendor product","name":"open-webui","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"open-webui\",\n                    \"product\": \"open-webui\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"packageURL\": \"pkg:pypi/open-webui\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0.8.8\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\",\n                            \"lessThan\": \"0.11.4\"\n                        },\n                        {\n                            \"version\": \"0.11.4\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N","score":5.3,"severity":"MEDIUM"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L","score":6.3,"severity":"MEDIUM"}],"references":["https://github.com/open-webui/open-webui/security/advisories/GHSA-6g45-8g27-fh8q","https://www.vulncheck.com/advisories/open-webui-0.8.8-before-0.11.4-improper-session-revocation-via-terminal-websocket"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-109289","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-109289","identifiers":["CVE-2026-109289"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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