{"id":"CVE-2026-77525","published":"2026-09-21T21:17:11.463","lastModified":"2026-09-21T21:17:11.600","description":"MaxKB is an open-source AI assistant for enterprise. In 2.10.2-lts and earlier, management chat-record routes authorize the path application_id but load records using global chat_id and chat_record_id values without confirming that the chat belongs to the authorized application. A normal user in the same workspace who knows the chat_id of a persisted non-debug record for a victim's published application can place it under a separate attacker-owned application path to read victim chat records. An attacker with an owned knowledge base and document can also use add_knowledge to copy victim answers while updating the victim record's improve_paragraph_id_list. No fixed version is available as of this review.","cvssScore":4.2,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N","cwes":["CWE-862"],"vendors":[],"products":[],"references":[{"url":"https://github.com/1Panel-dev/MaxKB/security/advisories/GHSA-7fmh-98f2-2cfg","tags":[]}],"exploitRefs":[{"url":"https://github.com/1Panel-dev/MaxKB/security/advisories/GHSA-7fmh-98f2-2cfg","tags":[]}],"hasPoc":true,"ai":{"summary":"The flaw allows a normal user to read victim chat records by misusing application_id and chat_id values, posing a risk to data privacy within the same workspace.","exploitability":"Exploitation requires knowledge of specific chat_ids and involves reassigning them to different applications; moderately difficult with preconditions.","blast_radius":"If exploited, it could lead to significant data exposure for victims within the same workspace, impacting multiple users' privacy.","remediation":"Implement strict validation checks on application_id and chat_id values to ensure they match before loading records.","tags":["data-exposure","misconfiguration","workspace-privacy"],"model":"qwen2.5:7b-instruct","analyzedAt":"2026-09-22T06:35:29.592Z"}}