Vulnerability-Lookup

GHSA-H64P-8H4R-6GFH

Vulnerability from github – Published: 2026-07-02 19:09 – Updated: 2026-07-02 19:09

Summary

SFTPGo has path confinement bypass in public browsable share partial ZIP download

Details

Summary

The public web-client endpoint for partial ZIP downloads of a browsable share did not correctly confine the client-supplied files entries to the shared directory. A requester able to reach a public share could read files located outside the shared directory, as long as the target's canonical path begins with the shared directory's name.

Patches

Fixed in v2.7.3. The fix replaces the raw prefix check with a directory-boundary–aware check.

Severity

5.9 (Medium)


                  
                    CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Show details on source website

JSON

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{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 2.7.1"
      },
      "package": {
        "ecosystem": "Go",
        "name": "github.com/drakkan/sftpgo/v2"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.2.0"
            },
            {
              "fixed": "2.7.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-49244"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-22"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-07-02T19:09:13Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "## Summary\n\nThe public web-client endpoint for partial ZIP downloads of a browsable share did not correctly confine the client-supplied files entries to the shared directory. A requester able to reach a public share could read files located outside the shared directory, as long as the target\u0027s canonical path begins with the shared directory\u0027s name.\n\n## Patches\n\nFixed in v2.7.3. The fix replaces the raw prefix check with a directory-boundary\u2013aware check.",
  "id": "GHSA-h64p-8h4r-6gfh",
  "modified": "2026-07-02T19:09:13Z",
  "published": "2026-07-02T19:09:13Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/drakkan/sftpgo/security/advisories/GHSA-h64p-8h4r-6gfh"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/drakkan/sftpgo"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "SFTPGo has path confinement bypass in public browsable share partial ZIP download"
}

CVE-2026-49244 (GCVE-0-2026-49244)

Vulnerability from cvelistv5 – Published: 2026-08-20 21:53 – Updated: 2026-08-21 21:44

Title

SFTPGo: Path confinement bypass in public browsable share partial ZIP download

Summary

SFTPGo is an open source, event-driven file transfer solution. From 2.2.0 until 2.7.3, the public web-client partial ZIP download endpoint for a browsable share validates client-supplied files entries with a raw byte-prefix comparison rather than a directory-boundary-aware check. An unauthenticated requester who can reach a public share can select a canonical path outside the shared directory when the target path begins with the shared directory's name, such as a sibling path that shares the same prefix. The endpoint then includes the out-of-scope file in the generated download, disclosing its contents. This issue is fixed in version 2.7.3.

Severity

5.9 (Medium)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-21 20:58 UTC

CWE

CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 8026 records in the last 180 days details

References

3 references

URL	Tags
https://github.com/drakkan/sftpgo/security/adviso…	x_refsource_CONFIRM
https://github.com/drakkan/sftpgo/commit/52a56584…	x_refsource_MISC
https://github.com/drakkan/sftpgo/releases/tag/v2.7.3	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
drakkan	sftpgo	Affected: >= 2.2.0 < 2.7.2

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-49244",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-21T20:58:27.136909Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-08-21T21:44:58.013Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "sftpgo",
          "vendor": "drakkan",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 2.2.0 \u003c 2.7.2"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "SFTPGo is an open source, event-driven file transfer solution. From 2.2.0 until 2.7.3, the public web-client partial ZIP download endpoint for a browsable share validates client-supplied files entries with a raw byte-prefix comparison rather than a directory-boundary-aware check. An unauthenticated requester who can reach a public share can select a canonical path outside the shared directory when the target path begins with the shared directory\u0027s name, such as a sibling path that shares the same prefix. The endpoint then includes the out-of-scope file in the generated download, disclosing its contents. This issue is fixed in version 2.7.3."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.9,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-22",
              "description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-20T21:53:12.098Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/drakkan/sftpgo/security/advisories/GHSA-h64p-8h4r-6gfh",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/drakkan/sftpgo/security/advisories/GHSA-h64p-8h4r-6gfh"
        },
        {
          "name": "https://github.com/drakkan/sftpgo/commit/52a56584c417e325aea35ab23849422a90ba512f",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/drakkan/sftpgo/commit/52a56584c417e325aea35ab23849422a90ba512f"
        },
        {
          "name": "https://github.com/drakkan/sftpgo/releases/tag/v2.7.3",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/drakkan/sftpgo/releases/tag/v2.7.3"
        }
      ],
      "source": {
        "advisory": "GHSA-h64p-8h4r-6gfh",
        "discovery": "UNKNOWN"
      },
      "title": "SFTPGo: Path confinement bypass in public browsable share partial ZIP download"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-49244",
    "datePublished": "2026-08-20T21:53:12.098Z",
    "dateReserved": "2026-05-28T14:33:01.178Z",
    "dateUpdated": "2026-08-21T21:44:58.013Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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Action not permitted

GHSA-H64P-8H4R-6GFH

Summary

Patches

CVE-2026-49244 (GCVE-0-2026-49244)

Tags

Sightings

Nomenclature

Vulnerability timeline

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