{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "0.12.0"
              },
              {
                "fixed": "0.12.0"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "DESCRIPTION"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "9ad3e4e49aa35b8acddd235918a5d9753c1cfdf9"
            }
          ],
          "repo": "https://github.com/cinnamon/kotaemon",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-502"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/69xxx/CVE-2026-69098.json"
  },
  "details": "kotaemon through 0.12.0 contains an insecure deserialization vulnerability in the check_connection endpoint that allows unauthenticated attackers to instantiate arbitrary Python classes by supplying crafted YAML/JSON input with a __type__ field. Attackers can exploit this to override the __type__ field with subprocess.check_output and arbitrary arguments, achieving remote code execution with application process privileges.",
  "id": "CVE-2026-69098",
  "modified": "2026-08-07T03:30:10.548394921Z",
  "published": "2026-08-04T15:15:06.018Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/69xxx/CVE-2026-69098.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-69098"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/kotaemon-unauthenticated-remote-code-execution-via-insecure-deserialization"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/Cinnamon/kotaemon"
    },
    {
      "type": "EVIDENCE",
      "url": "https://github.com/Cinnamon/kotaemon/issues/844"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "kotaemon 0.12.0 Unauthenticated Remote Code Execution via Insecure Deserialization"
}