{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "4.9.4"
              },
              {
                "introduced": "5.0.0"
              },
              {
                "fixed": "5.4.4"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "introduced": "2ff182ba39ddea19fa1615bd3733f734b5e53842"
            },
            {
              "fixed": "274dca6df93de6eda649f27f5367ddbc8e0f1fe1"
            },
            {
              "fixed": "3f96d3b9ccda22f0d2f901b96376b5d08556ad75"
            },
            {
              "fixed": "aa33414e1669e866cdd6f4decfae2a669e8bb828"
            },
            {
              "fixed": "fad9cbd22c73ed0fbd3aaf62310a8dcacfc007cd"
            }
          ],
          "repo": "https://github.com/getkirby/kirby",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-4v4h-m2qq-ppgw"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-113",
      "CWE-93"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/50xxx/CVE-2026-50188.json"
  },
  "details": "Kirby is an open-source content management system. Prior to 4.9.4 and 5.4.4, Kirby sites and plugins using the Kirby Http Remote class, including Remote::request(), Remote::get(), and Remote::post(), to send outgoing HTTP requests with untrusted data in the headers option could allow newline characters in a header value to inject a separate unintended request header to the remote service. This issue is fixed in versions 4.9.4 and 5.4.4.",
  "id": "CVE-2026-50188",
  "modified": "2026-07-15T01:49:10.943455242Z",
  "published": "2026-07-09T18:44:56.901Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/getkirby/kirby/releases/tag/4.9.4"
    },
    {
      "type": "WEB",
      "url": "https://github.com/getkirby/kirby/releases/tag/5.4.4"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/50xxx/CVE-2026-50188.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/getkirby/kirby/security/advisories/GHSA-4v4h-m2qq-ppgw"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-50188"
    },
    {
      "type": "FIX",
      "url": "https://github.com/getkirby/kirby/commit/aa33414e1669e866cdd6f4decfae2a669e8bb828"
    },
    {
      "type": "FIX",
      "url": "https://github.com/getkirby/kirby/commit/fad9cbd22c73ed0fbd3aaf62310a8dcacfc007cd"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:H/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Kirby: Request header injection in `Http\\Remote`"
}