{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "range": [
                  {
                    "fixed": "f5531c21302d00901021bf2cb4dba7fca6436cfb"
                  }
                ],
                "source": "REFERENCES_COMMIT"
              }
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "f5531c21302d00901021bf2cb4dba7fca6436cfb"
            }
          ],
          "repo": "https://github.com/sshtools/maverick-synergy",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-41"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/127xxx/CVE-2026-127091.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "range": [
              {
                "fixed": "3.0.33"
              },
              {
                "introduced": "3.1.0"
              },
              {
                "fixed": "3.1.7"
              },
              {
                "fixed": "1.8.1"
              }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StandardRange"
          }
        ]
      },
      {
        "extracted_events": [
          {
            "range": [
              {
                "fixed": "3.0.33"
              },
              {
                "introduced": "3.1.x"
              },
              {
                "fixed": "3.1.7"
              },
              {
                "fixed": "1.8.1"
              }
            ],
            "source": "DESCRIPTION"
          }
        ]
      }
    ]
  },
  "details": "Jadaptive Maverick Synergy Server before 3.0.33 and 3.1.x before 3.1.7, and Maverick Legacy Server before 1.8.1, contain an improper path equivalence flaw in VirtualFileFactory.canonicalisePath that bypasses mount-level access policy. Authenticated users can supply paths with duplicate separators or dot segments to route operations to a less restrictive parent mount and read or write files the child mount denies.",
  "id": "CVE-2026-127091",
  "modified": "2026-11-14T02:30:33.917963979Z",
  "published": "2026-11-13T09:34:14.761Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/127xxx/CVE-2026-127091.json"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/sshtools/maverick-synergy"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/sshtools/maverick-synergy/blob/3.1.4/maverick-virtual-filesystem/src/main/java/com/sshtools/common/files/vfs/VirtualFileFactory.java#L189-L219"
    },
    {
      "type": "FIX",
      "url": "https://github.com/sshtools/maverick-synergy/commit/f5531c21302d00901021bf2cb4dba7fca6436cfb"
    },
    {
      "type": "ADVISORY",
      "url": "https://jadaptive.com/security/advisories/JADAPTIVE-SA-2026-002"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-127091"
    },
    {
      "type": "ADVISORY",
      "url": "https://store.jadaptive.com/app/api/releases/changes/01d04a39-0f05-4bae-842e-d2f1acc16985"
    },
    {
      "type": "ADVISORY",
      "url": "https://store.jadaptive.com/app/api/releases/changes/ff71bdcf-a2a2-47e0-af5a-22e15af1dfa4"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/jadaptive-maverick-synergy-server-before-3.0.33-and-3.1-x-before-3.1.7-and-maverick-legacy-server-before-1.8.1-vfs-mount-policy-bypass-via-non-canonical-paths"
    }
  ],
  "schema_version": "1.9.2",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Jadaptive Maverick Synergy Server before 3.0.33 and 3.1.x before 3.1.7, and Maverick Legacy Server before 1.8.1, VFS Mount Policy Bypass via Non-Canonical Paths"
}