{"id":"CVE-2026-54010","summary":"Open WebUI: Forged chat-file link allows cross-user file read and deletion","details":"Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.6, Open WebUI lets an authenticated user attach arbitrary file_id values to their own chat message without checking whether they own or can read those files. If the attacker then shares that chat and grants themselves read access, has_access_to_file() treats the victim file as accessible through the shared chat, and the file endpoints read or delete the victim file. This vulnerability is fixed in 0.9.6.","aliases":["GHSA-vrhc-3fr6-pc3c","PYSEC-2026-2763"],"modified":"2026-07-15T01:49:20.194323310Z","published":"2026-06-23T16:48:22.266Z","database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-284","CWE-639","CWE-862"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54010.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54010.json"},{"type":"ADVISORY","url":"https://github.com/open-webui/open-webui/security/advisories/GHSA-vrhc-3fr6-pc3c"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-54010"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/open-webui/open-webui","events":[{"introduced":"0"},{"fixed":"1a97751e376e00a1897bc3679215ae1c7bd8fd42"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"0.9.6"}],"source":["AFFECTED_FIELD","CPE_RANGE"],"cpe":"cpe:2.3:a:openwebui:open_webui:*:*:*:*:*:*:*:*"}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-54010.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L"}]}