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Medium

e621ng before 26.09.16 Open Redirect via URL Parameters

Type: advisorySources: OSV

e621ng versions before 26.09.16 pass untrusted request parameters directly to Rails url_for in PaginatorComponent and controller navigation links, allowing attackers to redirect pagination and navigation controls to attacker-controlled origins. Attackers can supply host, protocol, and port query parameters that are interpreted as URL generation options, causing pagination links to point to malicious domains while the initial page loads from the legitimate site.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2026-95813
Confirmed fixed CVEs
Not specified
Updated in this feed
4 Nov 2026, 20:31 UTC · Revision 1

Source evidence

e621ng before 26.09.16 Open Redirect via URL Parameters

core-osv · Original source

Published 22 Sept 2026, 20:21 UTC

e621ng versions before 26.09.16 pass untrusted request parameters directly to Rails url_for in PaginatorComponent and controller navigation links, allowing attackers to redirect pagination and navigation controls to attacker-controlled origins. Attackers can supply host, protocol, and port query parameters that are interpreted as URL generation options, causing pagination links to point to malicious domains while the initial page loads from the legitimate site.

osv:CVE-2026-95813
Complete source record
{
  "id": "8fbef4ff3e4ca31d79422e881084b7ad8b0f07d507af0f072e9df9b8656f021d",
  "url": "https://osv.dev/vulnerability/CVE-2026-95813",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "e621ng before 26.09.16 Open Redirect via URL Parameters",
    "summary": "e621ng versions before 26.09.16 pass untrusted request parameters directly to Rails url_for in PaginatorComponent and controller navigation links, allowing attackers to redirect pagination and navigation controls to attacker-controlled origins. Attackers can supply host, protocol, and port query parameters that are interpreted as URL generation options, causing pagination links to point to malicious domains while the initial page loads from the legitimate site.",
    "evidence": "osv:CVE-2026-95813",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-95813",
      "aliases": [
        "CVE-2026-95813"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/e621ng/e621ng",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "f6862a119c2c19666001401cfe891666604a1432"
                },
                {
                  "fixed": "e1a3930bf1750b02a23843ec88c33e2aa06e2a5e"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "26.09.16"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
                      {
                        "fixed": "e1a3930bf1750b02a23843ec88c33e2aa06e2a5e"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "f6862a119c2c19666001401cfe891666604a1432"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "26.09.16"
                  }
                ]
              }
            }
          ],
          "versions": [
            "26.09.02",
            "26.08.26-fix.3",
            "26.08.26-fix.2",
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          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-95813.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:39.040703832Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/95xxx/CVE-2026-95813.json",
        "https://github.com/e621ng/e621ng/releases/tag/26.09.16",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-95813",
        "https://www.vulncheck.com/advisories/e621ng-before-26.09.16-open-redirect-via-url-parameters",
        "https://github.com/e621ng/e621ng/commit/e1a3930bf1750b02a23843ec88c33e2aa06e2a5e",
        "https://github.com/e621ng/e621ng/pull/2518",
        "https://github.com/e621ng/e621ng",
        "https://github.com/e621ng/e621ng/blob/26.09.02/app/components/paginator_component.rb"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-601"
        ],
        "cna_assigner": "VulnCheck",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/95xxx/CVE-2026-95813.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-95813",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 506702,
  "published_at": "2026-09-22T20:21:11.309+00:00"
}