{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "2.0.0"
              }
            ],
            "source": [
              "DESCRIPTION",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4c4268f9c0adf8743a75e6dda2ef1fa635f34cc3"
            },
            {
              "fixed": "6f20f9b822d85bb063008e786f808d04619dd54e"
            }
          ],
          "repo": "https://github.com/oraios/serena",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-59"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/109xxx/CVE-2026-109965.json"
  },
  "details": "Serena before 2.0.0 contains an improper link resolution vulnerability that allows attackers to access files outside the project root by committing symlinks inside a repository. Project.is_path_in_project() normalizes paths lexically without resolving symlinks, so file tools like read_file and create_text_file can read or overwrite files such as SSH keys or cloud credentials.",
  "id": "CVE-2026-109965",
  "modified": "2026-10-15T02:31:08.478914211Z",
  "published": "2026-10-13T14:00:17.324Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/109xxx/CVE-2026-109965.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/oraios/serena/releases/tag/v2.0.0"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-109965"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/serena-before-2.0.0-symlink-following-in-file-tools-allows-access-outside-project-root"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/oraios/serena/issues/2144"
    },
    {
      "type": "FIX",
      "url": "https://github.com/oraios/serena/commit/6f20f9b822d85bb063008e786f808d04619dd54e"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/oraios/serena"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/oraios/serena/blob/v1.7.0/src/serena/project.py"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Serena before 2.0.0 Symlink Following in File Tools Allows Access Outside Project Root"
}