{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "4.2.4"
              },
              {
                "introduced": "4.3.0"
              },
              {
                "fixed": "4.3.3"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "introduced": "5254d334d948d73dbb9202741f007c9be541a5f7"
            },
            {
              "fixed": "23a029e847e2d75b9758d5f001d1c1c14f64f7bb"
            },
            {
              "fixed": "7c78eab71ab1eba6330a721cb1ef33a95a06355f"
            }
          ],
          "repo": "https://github.com/poweradmin/poweradmin",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-3735-5339-xfwx"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-20",
      "CWE-601"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54588.json"
  },
  "details": "Poweradmin is a web-based DNS administration tool for PowerDNS server. Versions prior to 4.2.4 and 4.3.3 use the attacker-controlled `HTTP_HOST` request header as the authoritative source for building callback URLs in its OIDC, SAML, and logout authentication flows without any validation. An unauthenticated attacker can poison the `redirect_uri` sent to the Identity Provider, causing the IdP to redirect the victim's authorization code to an attacker-controlled server - resulting in full account takeover with no credentials required. Versions 4.2.4 and 4.3.3 patch the issue.",
  "id": "CVE-2026-54588",
  "modified": "2026-07-15T01:49:16.402760575Z",
  "published": "2026-06-23T22:09:27.268Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/poweradmin/poweradmin/releases/tag/v4.2.4"
    },
    {
      "type": "WEB",
      "url": "https://github.com/poweradmin/poweradmin/releases/tag/v4.3.3"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54588.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/poweradmin/poweradmin/security/advisories/GHSA-3735-5339-xfwx"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-54588"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Poweradmin has Host Header Injection in OIDC redirect_uri, SAML ACS/SLO URL, and Logout Redirect Construction."
}