CWE-59

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-06T14:18:09.552Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "RHSA-2013:0595",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "http://rhn.redhat.com/errata/RHSA-2013-0595.html"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=908101"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:openstack:5::el6"
          ],
          "defaultStatus": "affected",
          "packageName": "openstack-packstack",
          "product": "Red Hat Enterprise Linux OpenStack Platform 5 (Icehouse)",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:openstack:4"
          ],
          "defaultStatus": "affected",
          "packageName": "openstack-packstack",
          "product": "Red Hat OpenStack Platform 4",
          "vendor": "Red Hat"
        }
      ],
      "datePublic": "2013-03-08T21:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "A flaw was found in PackStack. A local user could exploit a symlink attack on a temporary file with a predictable name in the `/tmp` directory. This vulnerability allows the local user to overwrite arbitrary files on the system, potentially leading to system compromise or data corruption."
        }
      ],
      "metrics": [
        {
          "other": {
            "content": {
              "namespace": "https://access.redhat.com/security/updates/classification/",
              "value": "Moderate"
            },
            "type": "Red Hat severity rating"
          }
        },
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-59",
              "description": "Improper Link Resolution Before File Access (\u0027Link Following\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-30T16:33:18.902Z",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "url": "http://rhn.redhat.com/errata/RHSA-2013-0595.html"
        },
        {
          "tags": [
            "vdb-entry",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/security/cve/CVE-2013-0261"
        },
        {
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=908101"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-04-02T15:03:16.923Z",
          "value": "Reported to Red Hat."
        },
        {
          "lang": "en",
          "time": "2013-03-08T21:00:00.000Z",
          "value": "Made public."
        }
      ],
      "title": "Packstack: packstack: arbitrary file overwrite via symlink attack",
      "x_generator": {
        "engine": "cvelib 1.8.0"
      },
      "x_redhatCweChain": "CWE-59: Improper Link Resolution Before File Access (\u0027Link Following\u0027)"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2013-0261",
    "datePublished": "2013-03-08T21:00:00.000Z",
    "dateReserved": "2012-12-06T00:00:00.000Z",
    "dateUpdated": "2026-04-30T16:33:18.902Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

{
  "affected": [],
  "aliases": [
    "CVE-2013-1444"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-59"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2013-09-30T22:55:00Z",
    "severity": "LOW"
  },
  "details": "A certain Debian patch for txt2man 1.5.5, as used in txt2man 1.5.5-2, 1.5.5-4, and others, allows local users to overwrite arbitrary files via a symlink attack on /tmp/2222.",
  "id": "GHSA-225j-hmp8-xwwv",
  "modified": "2022-05-17T05:01:49Z",
  "published": "2022-05-17T05:01:49Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2013-1444"
    },
    {
      "type": "WEB",
      "url": "http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=724614"
    },
    {
      "type": "WEB",
      "url": "http://osvdb.org/97769"
    },
    {
      "type": "WEB",
      "url": "http://seclists.org/oss-sec/2013/q3/660"
    },
    {
      "type": "WEB",
      "url": "http://www.ubuntu.com/usn/USN-1979-1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

{
  "affected": [],
  "aliases": [
    "CVE-2020-10665"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-269",
      "CWE-59"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2020-03-18T19:15:00Z",
    "severity": "HIGH"
  },
  "details": "Docker Desktop allows local privilege escalation to NT AUTHORITY\\SYSTEM because it mishandles the collection of diagnostics with Administrator privileges, leading to arbitrary DACL permissions overwrites and arbitrary file writes. This affects Docker Desktop Enterprise before 2.1.0.9, Docker Desktop for Windows Stable before 2.2.0.4, and Docker Desktop for Windows Edge before 2.2.2.0.",
  "id": "GHSA-22mx-2pf3-v75r",
  "modified": "2022-05-24T17:11:49Z",
  "published": "2022-05-24T17:11:49Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-10665"
    },
    {
      "type": "WEB",
      "url": "https://docs.docker.com/release-notes"
    },
    {
      "type": "WEB",
      "url": "https://github.com/active-labs/Advisories/blob/master/2020/ACTIVE-2020-002.md"
    },
    {
      "type": "WEB",
      "url": "https://github.com/spaceraccoon/CVE-2020-10665"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

{
  "affected": [],
  "aliases": [
    "CVE-2018-19044"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-59"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-11-08T20:29:00Z",
    "severity": "MODERATE"
  },
  "details": "keepalived 2.0.8 didn\u0027t check for pathnames with symlinks when writing data to a temporary file upon a call to PrintData or PrintStats. This allowed local users to overwrite arbitrary files if fs.protected_symlinks is set to 0, as demonstrated by a symlink from /tmp/keepalived.data or /tmp/keepalived.stats to /etc/passwd.",
  "id": "GHSA-2357-m5j6-6jv3",
  "modified": "2022-05-14T00:54:45Z",
  "published": "2022-05-14T00:54:45Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-19044"
    },
    {
      "type": "WEB",
      "url": "https://github.com/acassen/keepalived/issues/1048"
    },
    {
      "type": "WEB",
      "url": "https://github.com/acassen/keepalived/commit/04f2d32871bb3b11d7dc024039952f2fe2750306"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2019:2285"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.suse.com/show_bug.cgi?id=1015141"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/201903-01"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}

{
  "affected": [
    {
      "package": {
        "ecosystem": "crates.io",
        "name": "tar"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.4.16"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2018-20990"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-59"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-08-19T21:24:12Z",
    "nvd_published_at": null,
    "severity": "HIGH"
  },
  "details": "When unpacking a tarball with the unpack_in-family of functions it\u0027s intended that only files within the specified directory are able to be written. Tarballs with hard links or symlinks, however, can be used to overwrite any file on the filesystem. Tarballs can contain multiple entries for the same file. A tarball which first contains an entry for a hard link or symlink pointing to any file on the filesystem will have the link created, and then afterwards if the same file is listed in the tarball the hard link will be rewritten and any file can be rewritten on the filesystem.",
  "id": "GHSA-2367-c296-3mp2",
  "modified": "2023-06-13T21:53:47Z",
  "published": "2021-08-25T20:43:54Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-20990"
    },
    {
      "type": "WEB",
      "url": "https://github.com/alexcrichton/tar-rs/pull/156"
    },
    {
      "type": "WEB",
      "url": "https://github.com/alexcrichton/tar-rs/commit/54651a87ae6ba7d81fcc72ffdee2ea7eca2c7e85"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/alexcrichton/tar-rs"
    },
    {
      "type": "WEB",
      "url": "https://rustsec.org/advisories/RUSTSEC-2018-0002.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Arbitrary file overwrite in tar-rs"
}

{
  "affected": [
    {
      "package": {
        "ecosystem": "crates.io",
        "name": "uu_install"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.6.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-35355"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-367",
      "CWE-59"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-07-06T19:54:08Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "`copy_file` in `install/src/install.rs` removes the destination then recreates it by pathname via `File::create` / `fs::copy` without `O_EXCL`/`create_new`. Between the unlink and the recreate, a local attacker with write access to the destination directory can drop in a symlink and redirect the write.\n\n**Impact:** when `install` runs privileged into an attacker-writable directory (staging/build paths), the race allows redirecting writes to arbitrary files and overwriting sensitive system files (`/etc/passwd`, `/etc/shadow`). Recommendation: create atomically with `create_new`/`O_EXCL` and copy via the opened fd rather than reopening by path.\n\n**Remediation:** Acknowledged by Canonical; fixed in commit b5bbabc1.\n\n---\n_Reported by Zellic in the *uutils coreutils Program Security Assessment* (prepared for Canonical, Jan 20 2026), audited commit `3a07ffc5a9bd4c283e75afa548ba1f1957bad242`. Finding 3.50. Credit: Zellic._",
  "id": "GHSA-239g-2685-54x3",
  "modified": "2026-07-06T19:54:08Z",
  "published": "2026-07-06T19:54:08Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/uutils/coreutils/security/advisories/GHSA-239g-2685-54x3"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-35355"
    },
    {
      "type": "WEB",
      "url": "https://github.com/uutils/coreutils/pull/10067"
    },
    {
      "type": "WEB",
      "url": "https://github.com/uutils/coreutils/commit/b5bbabc18a1121908848d836f869a4e98eb63886"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/uutils/coreutils"
    },
    {
      "type": "WEB",
      "url": "https://github.com/uutils/coreutils/releases/tag/0.6.0"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "install: TOCTOU symlink race (unlink-then-create without O_EXCL) allows arbitrary file overwrite"
}

{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 2.63.13"
      },
      "package": {
        "ecosystem": "Go",
        "name": "github.com/filebrowser/filebrowser/v2"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.63.14"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/filebrowser/filebrowser"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "1.11.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-54094"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-22",
      "CWE-59"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-06-12T21:53:10Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "## Summary\n\nFile Browser enforces per-user scope with `afero.NewBasePathFs(afero.NewOsFs(), scope)`, set up in `users/users.go`. This blocks lexical `../` traversal, but it does not stop the HTTP file handlers from following symbolic links before they open, serve, write, share, or list a file. As a result, a scoped user \u2014 and in some cases an unauthenticated public-share recipient \u2014 can cross the intended scope boundary by following a symlink whose path is lexically inside their scope but whose target is outside it.\n\nTwo distinct shapes are covered here:\n\n- **Variant 1 \u2014 symlink as the final path component.** A symlink that lives inside the user\u0027s scoped tree and points to a file under the server root but outside the scope. The handlers record the symlink (`IsSymlink`) but then resolve and operate on the target anyway.\n- **Variant 2 \u2014 file or directory reached through a symlinked ancestor.** A regular file requested *through* a symlinked directory.\n\nRead, write (including TUS resumable uploads), share creation, and public-share serving are all affected.\n\n## Impact\n\nIn a multi-user deployment, if a symlink (a file symlink for Variant 1, or a directory symlink for Variant 2) exists inside a restricted user\u0027s scoped tree and resolves to a location outside that scope but reachable by the server process, the boundary can be crossed. Concretely, a user holding only normal File Browser permissions can:\n\n- Read out-of-scope file contents and metadata via `GET /api/raw/{path}` and `GET /api/resources/{path}`.\n- Overwrite an out-of-scope target via `POST /api/resources/{path}?override=true`.\n- Overwrite or create an out-of-scope target via the TUS resumable upload path: `POST /api/tus/{path}?override=true` followed by `PATCH /api/tus/{path}`.\n- Create a public share for an out-of-scope target via `POST /api/share/{path}`, exposing it through `GET /api/public/dl/{hash}`.\n\nFor Variant 2, the same exposure reaches public-share recipients: a normal public directory share whose subtree contains a linked descendant lets an unauthenticated recipient read regular files behind the link, pull them into the share\u0027s archive download, and see the resolved target in directory listings.\n\nThis breaks the confidentiality and integrity guarantees that per-user scopes and password/anonymous shares are relied upon to provide, for any data the server process can reach.\n\n## Technical details\n\nUsers are rooted with `afero.NewBasePathFs(afero.NewOsFs(), scope)`. Base-path rooting blocks lexical `../` traversal but does not prevent ordinary filesystem operations from following a symlink whose path is lexically inside the base.\n\nThe metadata layer records symlinks but does not consistently re-check the resolved target against the user\u0027s real scope:\n\n- In `files/file.go`, `stat()` calls `LstatIfPossible`, sets `IsSymlink`, and only invokes the `WithinScope` containment check when `file.IsSymlink == true`. For Variant 1, this guard (where present) covers the final-element symlink; on the commit tested for Variant 1 the handler still resolved the target with `opts.Fs.Stat(opts.Path)` and served it. For Variant 2, `LstatIfPossible` follows a symlinked *ancestor* and returns the leaf as a regular file (`IsSymlink == false`), so `stat()` returns early and the scope check never runs at all.\n- `readListing` in `files/file.go` follows symlink entries to display the target\u0027s metadata.\n- `http/raw.go` builds a file object for the requested path and serves non-directories; its archive walker `getFiles` follows symlinks via `Stat`/`Open`, pulling linked descendants into archive downloads.\n- `http/resource.go` writes request bodies with `writeFile(d.user.Fs, r.URL.Path, ...)`, and the destination open follows symlinks.\n- `http/tus_handlers.go` (`tusPostHandler`, `tusPatchHandler`) calls `MkdirAll`/`OpenFile` on the request path directly with no containment check. Because a brand-new leaf does not stat an existing file, it skips the scope check entirely.\n- `http/share.go` stores a share for `r.URL.Path` without checking that the path is not a symlink escape; `http/public.go` later serves it for unauthenticated downloads (routed at `http/http.go:90-91`).\n- `http/data.go` applies dotfile and rule checks to the request path *string*, but never compares the resolved symlink target against the user\u0027s real scope.\n\n## Proof of concept\n\n### Variant 1 \u2014 symlink as final path component\n\nHarness layout: server root is a temp directory; restricted user `restricted` is scoped to `/u1` with create, modify, rename, share, and download permissions; a second scope `/u2` holds the outside target `/u2/secret.txt` containing `other-secret`; and `/u1/link-out` is a symlink to `/u2/secret.txt`.\n\nConfirmed bypasses (route-level tests against the real HTTP handlers):\n\n- `GET /api/raw/link-out` \u2192 `200 OK`, body contains `other-secret` from `/u2/secret.txt`.\n- `POST /api/resources/link-out?override=true` \u2192 `200 OK`, `/u2/secret.txt` changed to `pwn`.\n- `POST /api/tus/link-out?override=true` \u2192 `201`, then `PATCH /api/tus/link-out` \u2192 `204`, `/u2/secret.txt` changed.\n- `POST /api/share/link-out` \u2192 `200 OK`, created a public share whose `GET /api/public/dl/{hash}` returned a body containing `other-secret`.\n\nMinimal core of the read proof:\n\n```go\nroot := t.TempDir()\nos.MkdirAll(filepath.Join(root, \"u1\"), 0755)\nos.MkdirAll(filepath.Join(root, \"u2\"), 0755)\nos.WriteFile(filepath.Join(root, \"u2\", \"secret.txt\"), []byte(\"other-secret\"), 0644)\nos.Symlink(filepath.Join(root, \"u2\", \"secret.txt\"), filepath.Join(root, \"u1\", \"link-out\"))\n\n// restricted is a File Browser user scoped to /u1 with Download permission.\nrr := authenticatedRequest(t, restricted, http.MethodGet, \"/api/raw/link-out\", nil)\nif rr.Code != http.StatusOK || !strings.Contains(rr.Body.String(), \"other-secret\") {\n    t.Fatalf(\"raw symlink exposed outside target: status=%d body=%q\", rr.Code, rr.Body.String())\n}\n```\n\n### Variant 2 \u2014 file reached through a symlinked ancestor\n\nAuthenticated scoped user whose scope contains a directory symlink `escape_link -\u003e /srv/users/otheruser`:\n\n```\n# The symlink itself is correctly blocked\nGET /api/resources/escape_link              -\u003e 403 Forbidden\n\n# A regular file THROUGH the symlinked directory is not\nGET /api/resources/escape_link/private.txt  -\u003e 200 OK  {\"content\":\"OTHER_USER_SECRET_DATA=...\",...}\nGET /api/raw/escape_link/private.txt        -\u003e 200 OK  OTHER_USER_SECRET_DATA=...\n\n# Create/overwrite THROUGH the symlinked directory (TUS)\nPOST  /api/tus/escape_link/injected.txt  (Upload-Length: 20) -\u003e 201 Created\nPATCH /api/tus/escape_link/injected.txt  (Upload-Offset: 0)  -\u003e 204 No Content  (written into /srv/users/otheruser/)\n```\n\nPublic directory share for `/shared`, where `/shared/link -\u003e ../private` and `private/secret.txt` lives outside the share:\n\n```\nGET /api/public/dl/\u003chash\u003e/link/secret.txt     -\u003e 200 OK  symlink-secret\nGET /api/public/share/\u003chash\u003e/link/secret.txt  -\u003e 200 OK  {\"path\":\"/link/secret.txt\", ...}\n```\n\nRequesting the whole share as an archive pulls `link/secret.txt` into the zip, and listing the share root exposes the `link` entry with its resolved target metadata.\n\n### Controls that held\n\nThe same harness confirmed that ordinary traversal is still rejected, so this is not generic `../` traversal:\n\n- `GET /api/resources/../u2/secret.txt?checksum=sha256` did not succeed as the restricted user.\n- `GET /api/resources/%2e%2e/u2/secret.txt` did not succeed (encoded dot-dot).\n- `POST /api/resources/../u2/new.txt` did not create `/u2/new.txt`.\n- `PATCH /api/resources/own.txt?action=rename\u0026destination=/../u2/moved.txt` did not move a file outside scope.\n\n## Affected code\n\n`users/users.go` (scope setup); `files/file.go` (`stat`, `readListing`); `http/raw.go` (`getFiles`); `http/resource.go` (`writeFile` destination); `http/tus_handlers.go` (`tusPostHandler`, `tusPatchHandler`); `http/share.go`; `http/public.go`; `http/http.go:90-91` (public routes); `http/data.go` (string-only path checks).\n\n## Remediation\n\nResolve symlinks and verify that the resolved target remains inside the user\u0027s real scoped root before any file operation \u2014 serving, sharing, writing, truncating, renaming, copying, or deleting. Specifically:\n\n- Call `WithinScope` (which resolves every path component with `filepath.EvalSymlinks`) for **all** paths in `stat()`, not only when the final element is a symlink. This closes the ancestor-symlink gap (Variant 2).\n- Add a `WithinScope` check before `MkdirAll`/`OpenFile` in `tusPostHandler` and `tusPatchHandler`, so a not-yet-existing leaf cannot skip containment.\n- Omit entries whose resolved target escapes the scope from `readListing`, and skip them in `getFiles` before stat/open/recursion.\n- Apply the same resolved-path check consistently to public share creation and public share serving.\n- As an alternative or defense-in-depth, reject symlinks for file operations unless an explicit administrator option enables them.\n\nAdd regression tests covering symlink reads, overwrites, TUS create/write, public shares (download, share-info, listing, and archive read paths), and the existing dot-dot controls \u2014 plus a positive test confirming that legitimately in-scope symlinks still resolve.\n\n## Limitations and non-claims\n\n- This is not generic `../` path traversal; dot-dot and encoded dot-dot controls held in the route-level tests.\n- This is not a proxy-auth confusion issue; the proofs use normal authenticated requests for a restricted user (and, for Variant 2\u0027s share case, an ordinary public-share recipient).\n- The proofs assume the relevant symlink already exists inside the scoped tree, or that another allowed workflow in the deployment can place it there \u2014 for example an SMB/NFS export, a Docker bind-mount, or an admin-created link. Web-UI-only creation of the symlink from scratch was not demonstrated.",
  "id": "GHSA-239w-m3h6-ch8v",
  "modified": "2026-06-12T21:53:10Z",
  "published": "2026-06-12T21:53:10Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/filebrowser/filebrowser/security/advisories/GHSA-239w-m3h6-ch8v"
    },
    {
      "type": "WEB",
      "url": "https://github.com/filebrowser/filebrowser/commit/7c2c0a11b31b2bb214d741005a0b02b1764208b3"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/filebrowser/filebrowser"
    },
    {
      "type": "WEB",
      "url": "https://github.com/filebrowser/filebrowser/releases/tag/v2.63.14"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "File Browser: Symlink following lets scoped users read, overwrite, and share files outside their filebrowser scope"
}

{
  "affected": [],
  "aliases": [
    "CVE-2020-9900"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-59"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2020-10-22T18:15:00Z",
    "severity": "HIGH"
  },
  "details": "An issue existed within the path validation logic for symlinks. This issue was addressed with improved path sanitization. This issue is fixed in iOS 13.6 and iPadOS 13.6, macOS Catalina 10.15.6, tvOS 13.4.8, watchOS 6.2.8. A local attacker may be able to elevate their privileges.",
  "id": "GHSA-24hp-jpqm-m2j2",
  "modified": "2023-01-09T18:30:25Z",
  "published": "2022-05-24T17:32:07Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-9900"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/kb/HT211288"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/kb/HT211289"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/kb/HT211290"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/kb/HT211291"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

{
  "affected": [],
  "aliases": [
    "CVE-2015-1130"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-59"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2015-04-10T14:59:00Z",
    "severity": "HIGH"
  },
  "details": "The XPC implementation in Admin Framework in Apple OS X before 10.10.3 allows local users to bypass authentication and obtain admin privileges via unspecified vectors.",
  "id": "GHSA-2697-3jf6-rpjg",
  "modified": "2025-10-22T03:30:42Z",
  "published": "2022-05-17T04:07:23Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2015-1130"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/HT204659"
    },
    {
      "type": "WEB",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2015-1130"
    },
    {
      "type": "WEB",
      "url": "https://www.exploit-db.com/exploits/36692"
    },
    {
      "type": "WEB",
      "url": "http://lists.apple.com/archives/security-announce/2015/Apr/msg00001.html"
    },
    {
      "type": "WEB",
      "url": "http://www.osvdb.org/120418"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/73982"
    },
    {
      "type": "WEB",
      "url": "http://www.securitytracker.com/id/1032048"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

{
  "affected": [],
  "aliases": [
    "CVE-2021-42056"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-59"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-06-24T17:15:00Z",
    "severity": "HIGH"
  },
  "details": "Thales Safenet Authentication Client (SAC) for Linux and Windows through 10.7.7 creates insecure temporary hid and lock files allowing a local attacker, through a symlink attack, to overwrite arbitrary files, and potentially achieve arbitrary command execution with high privileges.",
  "id": "GHSA-26hh-jgf5-3gmg",
  "modified": "2022-07-07T00:00:26Z",
  "published": "2022-06-25T00:00:52Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-42056"
    },
    {
      "type": "WEB",
      "url": "https://github.com/z00z00z00/Safenet_SAC_CVE-2021-42056"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}