{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "1.9.1"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "63b43ddad3136a2fac631153d6af8019b7d42138"
            }
          ],
          "repo": "https://github.com/microsoft/kiota-java",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-7j59-v9qr-6fq9"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-601"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44503.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "fixed": "1.22.0"
          },
          {
            "fixed": "1.5.5"
          },
          {
            "fixed": "1.0.0-preview.100"
          },
          {
            "fixed": "1.9.9"
          }
        ],
        "source": "AFFECTED_FIELD"
      }
    ]
  },
  "details": "The RedirectHandler middleware in microsoft/kiota-java (com.microsoft.kiota:microsoft-kiota-http-okHttp v1.9.0) and other Kiota libraries fails to strip sensitive HTTP headers when following 3xx redirects to a different host or scheme. Only the Authorization header is removed; Cookie, Proxy-Authorization, and all custom headers are forwarded to the redirect target.",
  "id": "CVE-2026-44503",
  "modified": "2026-07-15T01:49:11.926070475Z",
  "published": "2026-05-14T15:58:57.772Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44503.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/microsoft/kiota-java/security/advisories/GHSA-7j59-v9qr-6fq9"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-44503"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Kiota abstractions RedirectHandler leaks Cookie/Proxy-Authorization headers on cross-host redirect"
}