SFTPGo source-side file-pattern filter bypass during copy operations

{
  "id": "8f574194558dca375ade4fe39266f336857cc3b085cf45f4dcad1d93a554e51b",
  "url": "https://osv.dev/vulnerability/GHSA-wwv9-g5x4-966q",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "SFTPGo source-side file-pattern filter bypass during copy operations",
    "summary": "### Summary File pattern filters (`denied_patterns` / `allowed_patterns`) were evaluated on the destination of a copy only. A user holding the copy permission could copy a file denied by the filters to a permitted name and then read it. A recursive directory copy reproduced the contents of a restricted directory under a path where the filters do not deny them, and the hide policy was affected in the same way: a file reported as missing by stat and by directory listings could still be copied. ### Details An authenticated user can read the contents of files that the file pattern filters are configured to deny them. Nothing else is bypassed: the home directory, the virtual folder layout and the per-directory permissions are all still enforced, and both ends of the copy are paths the account can already reach. No access to other accounts and no administrative capability.",
    "evidence": "osv:GHSA-wwv9-g5x4-966q",
    "products": [
      {
        "name": {
          "value": "github.com/drakkan/sftpgo/v2",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.7.6",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "GHSA-wwv9-g5x4-966q",
      "aliases": [
        "CVE-2026-103028",
        "GHSA-wwv9-g5x4-966q",
        "GO-2026-6802"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "SEMVER",
              "events": [
                {
                  "introduced": "2.5.0"
                },
                {
                  "fixed": "2.7.6"
                }
              ]
            }
          ],
          "package": {
            "name": "github.com/drakkan/sftpgo/v2",
            "purl": "pkg:golang/github.com/drakkan/sftpgo/v2",
            "ecosystem": "Go"
          },
          "database_specific": {
            "source": "https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/10/GHSA-wwv9-g5x4-966q/GHSA-wwv9-g5x4-966q.json",
            "last_known_affected_version_range": "<= 2.7.5"
          }
        }
      ],
      "modified": "2026-10-19T21:41:22.513452094Z",
      "provider": "osv",
      "references": [
        "https://github.com/drakkan/sftpgo/security/advisories/GHSA-wwv9-g5x4-966q",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-103028",
        "https://github.com/drakkan/sftpgo/commit/dc8886bc079094b4ac2338df683f358b7676b5eb",
        "https://github.com/drakkan/sftpgo",
        "https://github.com/drakkan/sftpgo/releases/tag/v2.7.6"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-863"
        ],
        "severity": "MODERATE",
        "github_reviewed": true,
        "nvd_published_at": "2026-10-13T15:17:30Z",
        "github_reviewed_at": "2026-10-15T20:22:10Z"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-103028",
        "evidence": "/aliases"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 376807,
  "published_at": "2026-10-15T20:22:10+00:00"
}

{
  "id": "e765983b963916ceae96f2e491f53bdf01ceda8a501dc1e60a292f0907cfe8d0",
  "url": "https://osv.dev/vulnerability/GO-2026-6802",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "SFTPGo source-side file-pattern filter bypass during copy operations in github.com/drakkan/sftpgo",
    "summary": "SFTPGo source-side file-pattern filter bypass during copy operations in github.com/drakkan/sftpgo",
    "evidence": "osv:GO-2026-6802",
    "products": [
      {
        "name": {
          "value": "github.com/drakkan/sftpgo",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      },
      {
        "name": {
          "value": "github.com/drakkan/sftpgo/v2",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.7.6",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "GO-2026-6802",
      "aliases": [
        "CVE-2026-103028",
        "GHSA-wwv9-g5x4-966q",
        "GO-2026-6802"
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "SEMVER",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "github.com/drakkan/sftpgo",
            "purl": "pkg:golang/github.com/drakkan/sftpgo",
            "ecosystem": "Go"
          },
          "database_specific": {
            "source": "https://vuln.go.dev/ID/GO-2026-6802.json"
          },
          "ecosystem_specific": {}
        },
        {
          "ranges": [
            {
              "type": "SEMVER",
              "events": [
                {
                  "introduced": "2.5.0"
                },
                {
                  "fixed": "2.7.6"
                }
              ]
            }
          ],
          "package": {
            "name": "github.com/drakkan/sftpgo/v2",
            "purl": "pkg:golang/github.com/drakkan/sftpgo/v2",
            "ecosystem": "Go"
          },
          "database_specific": {
            "source": "https://vuln.go.dev/ID/GO-2026-6802.json"
          },
          "ecosystem_specific": {}
        }
      ],
      "modified": "2026-10-19T21:31:38.309842766Z",
      "provider": "osv",
      "references": [
        "https://github.com/drakkan/sftpgo/security/advisories/GHSA-wwv9-g5x4-966q",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-103028",
        "https://github.com/drakkan/sftpgo/commit/dc8886bc079094b4ac2338df683f358b7676b5eb",
        "https://github.com/drakkan/sftpgo/releases/tag/v2.7.6"
      ],
      "provider_metadata": {
        "url": "https://pkg.go.dev/vuln/GO-2026-6802",
        "review_status": "UNREVIEWED"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-103028",
        "evidence": "/aliases"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 376569,
  "published_at": "2026-10-19T21:08:35+00:00"
}