Skip to content
Heist/ feed
Back to feed
Low

filebrowser through 2.63.23 Stale Share Link via File Rename

Type: advisorySources: OSV

filebrowser through 2.63.23 does not remove share records when a shared file is renamed (only deletion triggers share cleanup). The share record is keyed by path, so it survives the rename and remains dormant (returning 404 while the path is empty). When any new, unrelated file later appears at the original shared path — via re-upload, another user with create permission, or a hook — the stale public share link serves that new file under the original link's password and expiry settings, unexpectedly exposing it.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2026-82237
Confirmed fixed CVEs
Not specified
Updated in this feed
7 Nov 2026, 09:53 UTC · Revision 1

Source evidence

filebrowser through 2.63.23 Stale Share Link via File Rename

core-osv · Original source

Published 28 Aug 2026, 10:49 UTC

filebrowser through 2.63.23 does not remove share records when a shared file is renamed (only deletion triggers share cleanup). The share record is keyed by path, so it survives the rename and remains dormant (returning 404 while the path is empty). When any new, unrelated file later appears at the original shared path — via re-upload, another user with create permission, or a hook — the stale public share link serves that new file under the original link's password and expiry settings, unexpectedly exposing it.

osv:CVE-2026-82237
Complete source record
{
  "id": "90c8607584271ec0ed32caa7fa5bab82ee1d5b1b2da60904d01ae5ed0817f044",
  "url": "https://osv.dev/vulnerability/CVE-2026-82237",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "filebrowser through 2.63.23 Stale Share Link via File Rename",
    "summary": "filebrowser through 2.63.23 does not remove share records when a shared file is renamed (only deletion triggers share cleanup). The share record is keyed by path, so it survives the rename and remains dormant (returning 404 while the path is empty). When any new, unrelated file later appears at the original shared path — via re-upload, another user with create permission, or a hook — the stale public share link serves that new file under the original link's password and expiry settings, unexpectedly exposing it.",
    "evidence": "osv:CVE-2026-82237",
    "products": [],
    "severity": "low",
    "structured": {
      "id": "CVE-2026-82237",
      "aliases": [
        "CVE-2026-82237",
        "GHSA-m8v4-4w34-rrvf"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/filebrowser/filebrowser",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "e8a388f840173580116f2743813d03b22286e44e"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "2.63.23"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "2.63.23"
                      }
                    ],
                    "source": "DESCRIPTION"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v2.63.23",
            "v2.63.22",
            "v2.63.21",
            "v2.63.20",
            "v2.63.19",
            "v2.63.18",
            "v2.63.17",
            "v2.63.16",
            "v2.63.15",
            "v2.63.14",
            "v2.63.13",
            "v2.63.12",
            "v2.63.11",
            "v2.63.10",
            "v2.63.9",
            "v2.63.8",
            "v2.63.7",
            "v2.63.6",
            "v2.63.5",
            "v2.63.4",
            "v2.63.3",
            "v2.63.1",
            "v2.63.0",
            "v2.62.2",
            "v2.62.1",
            "v2.62.0",
            "v2.61.2",
            "v2.61.1",
            "v2.61.0",
            "v2.60.0",
            "v2.59.0",
            "v2.58.0",
            "v2.57.1",
            "v2.57.0",
            "v2.56.0",
            "v2.55.0",
            "v2.54.0",
            "v2.53.1",
            "v2.53.0",
            "v2.52.0",
            "v2.51.2",
            "v2.51.1",
            "v2.51.0",
            "v2.50.0",
            "v2.49.0",
            "v2.48.2",
            "v2.48.1",
            "v2.48.0",
            "v2.47.0",
            "v2.46.1",
            "v2.46.0",
            "v2.45.3",
            "v2.45.2",
            "v2.45.1",
            "v2.45.0",
            "v2.44.2",
            "v2.44.1",
            "v2.44.0",
            "v2.43.0",
            "v2.42.5",
            "v2.42.4",
            "v2.42.3",
            "v2.42.2",
            "v2.42.1",
            "v2.42.0",
            "v2.41.0",
            "v2.40.2",
            "v2.40.1",
            "v2.40.0",
            "v2.39.0",
            "v2.38.0",
            "v2.37.0",
            "v2.36.3",
            "v2.36.2",
            "v2.36.1",
            "v2.36.0",
            "v2.35.0",
            "v2.34.2",
            "v2.34.1",
            "v2.34.0",
            "v2.33.10",
            "v2.33.9",
            "v2.33.8",
            "v2.33.7",
            "v2.33.6",
            "v2.33.5",
            "v2.33.4",
            "v2.33.3",
            "v2.33.2",
            "v2.33.1",
            "v2.33.0",
            "v2.32.3",
            "v2.32.2",
            "v2.32.1",
            "v2.32.0",
            "v2.31.2",
            "v2.31.1",
            "v2.31.0",
            "v2.30.0",
            "v2.29.0",
            "v2.28.0",
            "v2.27.0",
            "v2.26.0",
            "v2.25.0",
            "v2.24.2",
            "v2.24.1",
            "v2.24.0",
            "v2.23.0",
            "v2.22.4",
            "v2.22.3",
            "v2.22.2",
            "v2.22.1",
            "v2.22.0",
            "v2.21.1",
            "v2.21.0",
            "v2.20.1",
            "v2.20.0",
            "v2.19.0",
            "v2.18.0",
            "v2.17.2",
            "v2.17.1",
            "v2.17.0",
            "v2.16.1",
            "v2.16.0",
            "v2.15.0",
            "v2.14.1",
            "v2.14.0",
            "v2.13.0",
            "v2.12.1",
            "v2.12.0",
            "v2.11.0",
            "v2.10.0",
            "v2.9.0",
            "v2.8.0",
            "v2.7.0",
            "v2.6.2",
            "v2.6.1",
            "v2.6.0",
            "v2.5.0",
            "v2.4.0",
            "v2.3.0",
            "v2.2.0",
            "v2.1.2",
            "v2.1.1",
            "v2.1.0",
            "v2.0.16",
            "v2.0.15",
            "v2.0.14",
            "v2.0.13",
            "v2.0.12",
            "v2.0.11",
            "v2.0.10",
            "v2.0.9",
            "v2.0.8",
            "v2.0.7",
            "v2.0.6",
            "v2.0.5",
            "v2.0.4",
            "v2.0.3",
            "v2.0.2",
            "v2.0.1",
            "v2.0.0",
            "v2.0.0-rc.2",
            "v2.0.0-rc.1",
            "v1.11.0",
            "v1.10.0",
            "v1.9.0",
            "v1.8.0",
            "v1.7.1",
            "v1.7.0",
            "v1.6.0",
            "v1.5.5",
            "v1.5.4",
            "v1.5.3",
            "v1.5.2",
            "v1.5.1",
            "v1.5.0",
            "v1.4.6",
            "v1.4.5",
            "v1.4.4",
            "v1.4.3",
            "v1.4.0",
            "v1.3.12",
            "v1.3.11",
            "v1.3.10",
            "v1.3.9",
            "v1.3.8",
            "v1.3.7",
            "v1.3.6",
            "v1.3.5",
            "v1.3.4",
            "v1.3.3",
            "v1.3.2",
            "v1.3.1",
            "v1.3.0",
            "v1.2.9",
            "v1.2.8",
            "v1.2.7",
            "v1.2.6",
            "v1.2.5",
            "v1.2.4",
            "v1.2.3",
            "v1.2.2",
            "v1.2.1",
            "v1.2.0",
            "v1.1.1",
            "v1.1.0",
            "v1.0.2",
            "v1.0.1",
            "v1.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-82237.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:50.313960554Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/82xxx/CVE-2026-82237.json",
        "https://github.com/filebrowser/filebrowser/security/advisories/GHSA-m8v4-4w34-rrvf",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-82237",
        "https://www.vulncheck.com/advisories/filebrowser-through-2.63.23-stale-share-link-via-file-rename"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-459"
        ],
        "cna_assigner": "VulnCheck",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/82xxx/CVE-2026-82237.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-82237",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 518928,
  "published_at": "2026-08-28T10:49:26.624+00:00"
}