{"id":"CVE-2026-82281","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-82281","summary":"Kotaemon through 0.12.0 fails to properly validate conversation ownership in select_conv, delete_conv, rename_conv, and on_set_public_conversation functions in control.py. Attackers…","details":"Kotaemon through 0.12.0 fails to properly validate conversation ownership in select_conv, delete_conv, rename_conv, and on_set_public_conversation functions in control.py. Attackers can read other users' chat histories, delete conversations, or rename conversations by supplying arbitrary conversation identifiers without proper authorization checks.","published":"2026-08-28T20:20:19.363","modified":"2026-08-28T20:20:19.363","cvss":{"score":7.4,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":null,"references":[{"type":"WEB","url":"https://github.com/Cinnamon/kotaemon"},{"type":"WEB","url":"https://github.com/Cinnamon/kotaemon/blob/9ad3e4e49aa35b8acddd235918a5d9753c1cfdf9/libs/ktem/ktem/pages/chat/control.py"},{"type":"WEB","url":"https://github.com/Cinnamon/kotaemon/issues/846"},{"type":"WEB","url":"https://www.vulncheck.com/advisories/kotaemon-missing-ownership-check-in-conversation-functions"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-08-28T20:20:19.363"}}