SFTPGo: Denial of service via malformed SSH channel request

{
  "id": "cfcfac3e81c989b84ce01d1d810e317bd6035719b837ddcc82eedcfa44062f76",
  "url": "https://osv.dev/vulnerability/GHSA-q7pc-356p-hggc",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "SFTPGo: Denial of service via malformed SSH channel request",
    "summary": "### Summary A flaw in the SSH service allows an authenticated client to crash the server by sending a malformed protocol message while opening a channel. ### Impact Any user able to authenticate over SSH can trigger an unhandled error condition that aborts the server process. This results in a denial of service affecting all connected users until the service is restarted. No confidentiality or integrity impact has been identified; the issue is limited to availability.",
    "evidence": "osv:GHSA-q7pc-356p-hggc",
    "products": [
      {
        "name": {
          "value": "github.com/drakkan/sftpgo/v2",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.7.5",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "GHSA-q7pc-356p-hggc",
      "aliases": [
        "CVE-2026-77375",
        "GHSA-q7pc-356p-hggc",
        "GO-2026-6792"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "SEMVER",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2.7.5"
                }
              ]
            }
          ],
          "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-q7pc-356p-hggc/GHSA-q7pc-356p-hggc.json",
            "last_known_affected_version_range": "<= 2.7.4"
          }
        }
      ],
      "modified": "2026-10-19T21:40:57.524374779Z",
      "provider": "osv",
      "references": [
        "https://github.com/drakkan/sftpgo/security/advisories/GHSA-q7pc-356p-hggc",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-77375",
        "https://github.com/drakkan/sftpgo/commit/4f751232d7025cf2f7360e01ee8dca81e74b48b0",
        "https://github.com/drakkan/sftpgo",
        "https://github.com/drakkan/sftpgo/releases/tag/v2.7.5"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-129"
        ],
        "severity": "MODERATE",
        "github_reviewed": true,
        "nvd_published_at": "2026-10-13T15:17:49Z",
        "github_reviewed_at": "2026-10-15T20:14:20Z"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-77375",
        "evidence": "/aliases"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 376777,
  "published_at": "2026-10-15T20:14:20+00:00"
}

{
  "id": "7d45bba47bd0c85434ff13b6d82b7bd99a53e4201ed3795c8fd5b086d15873c6",
  "url": "https://osv.dev/vulnerability/GO-2026-6792",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "SFTPGo: Denial of service via malformed SSH channel request in github.com/drakkan/sftpgo",
    "summary": "SFTPGo: Denial of service via malformed SSH channel request in github.com/drakkan/sftpgo",
    "evidence": "osv:GO-2026-6792",
    "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": "2.7.5",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "GO-2026-6792",
      "aliases": [
        "CVE-2026-77375",
        "GHSA-q7pc-356p-hggc",
        "GO-2026-6792"
      ],
      "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-2026-6792.json"
          },
          "ecosystem_specific": {}
        },
        {
          "ranges": [
            {
              "type": "SEMVER",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2.7.5"
                }
              ]
            }
          ],
          "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-2026-6792.json"
          },
          "ecosystem_specific": {}
        }
      ],
      "modified": "2026-10-19T21:31:37.903463749Z",
      "provider": "osv",
      "references": [
        "https://github.com/drakkan/sftpgo/security/advisories/GHSA-q7pc-356p-hggc",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-77375",
        "https://github.com/drakkan/sftpgo/commit/4f751232d7025cf2f7360e01ee8dca81e74b48b0",
        "https://github.com/drakkan/sftpgo/releases/tag/v2.7.5"
      ],
      "provider_metadata": {
        "url": "https://pkg.go.dev/vuln/GO-2026-6792",
        "review_status": "UNREVIEWED"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-77375",
        "evidence": "/aliases"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 376565,
  "published_at": "2026-10-19T21:08:35+00:00"
}