{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:gradio_project:gradio:*:*:*:*:*:python:*:*",
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "6.15.0"
              }
            ],
            "source": [
              "CPE_RANGE",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0528c2c0e2c7080eeb5133f4c87b1bb38184ba47"
            },
            {
              "fixed": "feb7237d01f359d2ad4ee42d00344e61692b3b39"
            }
          ],
          "repo": "https://github.com/gradio-app/gradio",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-384"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/48xxx/CVE-2026-48545.json"
  },
  "details": "Gradio before version 6.15.0 contains a cookie injection vulnerability that allows remote attackers to perform cross-Space session fixation by exploiting a shared module-level HTTP client used across all users in the reverse proxy endpoint. Attackers controlling any HF Space can return a parent-domain cookie that the shared client stores and automatically replays into all subsequent proxy requests to other legitimate Spaces, affecting all users of the same Gradio deployment.",
  "id": "CVE-2026-48545",
  "modified": "2026-07-08T05:38:03.334623426Z",
  "published": "2026-05-27T14:59:33.071Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/48xxx/CVE-2026-48545.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/gradio-app/gradio/releases/tag/gradio%406.15.0"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-48545"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/gradio-cookie-injection-via-shared-pro"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/gradio-app/gradio/issues/13369"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/gradio-app/gradio/pull/13384"
    },
    {
      "type": "FIX",
      "url": "https://github.com/gradio-app/gradio/commit/feb7237d01f359d2ad4ee42d00344e61692b3b39"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/gradio-app/gradio"
    }
  ],
  "schema_version": "1.7.5",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Gradio \u003c 6.15.0 Cookie Injection via Shared Proxy Client"
}