{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "2.10.2-lts"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "6951bf3d126521a2ba959b2e3d623f2fe4d03bd6"
            }
          ],
          "repo": "https://github.com/1panel-dev/maxkb",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-862"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/77xxx/CVE-2026-77525.json"
  },
  "details": "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.",
  "id": "CVE-2026-77525",
  "modified": "2026-09-26T03:30:25.053743182Z",
  "published": "2026-09-21T20:37:49.415Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/1Panel-dev/MaxKB/security/advisories/GHSA-7fmh-98f2-2cfg"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/77xxx/CVE-2026-77525.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-77525"
    },
    {
      "type": "EVIDENCE",
      "url": "https://github.com/1Panel-dev/MaxKB/security/advisories/GHSA-r6g6-69fh-c39q"
    }
  ],
  "related": [
    "GHSA-7fmh-98f2-2cfg",
    "GHSA-r6g6-69fh-c39q"
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "MaxKB: Management chat-record routes trust path application_id but load ChatRecord by global chat_id"
}