GHSA-HHPQ-7WG4-36JM

Vulnerability from github – Published: 2026-06-17 18:52 – Updated: 2026-06-17 18:52
VLAI
Summary
CakePHP Authentication: Open redirect weakness via backslash bypass
Details

Impact

The getLoginRedirect() method contains a weakness to backslash bypasses allowing redirect targets with attacker controlled hostnames.

Patches

3.3.6 and 4.1.1 contain a fix for this issue.

Workarounds

If you are unable to upgrade, you should consider adding application validation to the redirect query string parameter to mitigate this vulnerability.

Severity
5.1 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
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{
  "affected": [
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "cakephp/authentication"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.3.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "cakephp/authentication"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.0.0"
            },
            {
              "fixed": "4.1.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-55590"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-601"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-06-17T18:52:09Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "### Impact\nThe `getLoginRedirect()` method contains a weakness to backslash bypasses allowing redirect targets with attacker controlled hostnames.\n\n### Patches\n3.3.6 and 4.1.1 contain a fix for this issue.\n\n### Workarounds\nIf you are unable to upgrade, you should consider adding application validation to the redirect query string parameter to mitigate this vulnerability.",
  "id": "GHSA-hhpq-7wg4-36jm",
  "modified": "2026-06-17T18:52:09Z",
  "published": "2026-06-17T18:52:09Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/cakephp/authentication/security/advisories/GHSA-hhpq-7wg4-36jm"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/cakephp/authentication"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "CakePHP Authentication: Open redirect weakness via backslash bypass"
}



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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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