{
  "affected": [
    {
      "database_specific": {
        "unresolved_ranges": [
          {
            "events": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "3.0.0-alpha0"
              }
            ]
          },
          {
            "events": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "3.0.0-alpha1"
              }
            ]
          },
          {
            "events": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "3.0.0-alpha2"
              }
            ]
          },
          {
            "events": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "3.0.0-alpha3"
              }
            ]
          },
          {
            "events": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "3.0.0-alpha4"
              }
            ]
          },
          {
            "events": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "3.0.0-alpha5"
              }
            ]
          }
        ]
      },
      "ranges": [
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "2.0.0"
              },
              {
                "fixed": "2.16.2"
              },
              {
                "introduced": "0"
              },
              {
                "last_affected": "3.0.0-NA"
              }
            ]
          },
          "events": [
            {
              "introduced": "3595ef58b96f1e5f2ff83384bfa0409a30797e7a"
            },
            {
              "fixed": "3b1688692471c70cf356ae526227e98982f56b09"
            },
            {
              "introduced": "0"
            },
            {
              "last_affected": "ead934d8f2e36244336d67ad075c6b2faf4e7267"
            }
          ],
          "repo": "https://github.com/koajs/koa",
          "type": "GIT"
        }
      ]
    }
  ],
  "details": "A vulnerability, which was classified as problematic, was found in KoaJS Koa up to 3.0.0. Affected is the function back in the library lib/response.js of the component HTTP Header Handler. The manipulation of the argument Referrer leads to open redirect. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.",
  "id": "CVE-2025-8129",
  "modified": "2026-04-01T23:09:29.386380128Z",
  "published": "2025-07-25T05:15:36.980Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://vuldb.com/?id.317514"
    },
    {
      "type": "ADVISORY",
      "url": "https://vuldb.com/?submit.619741"
    },
    {
      "type": "REPORT",
      "url": "https://vuldb.com/?ctiid.317514"
    },
    {
      "type": "FIX",
      "url": "https://github.com/koajs/koa/issues/1892"
    },
    {
      "type": "FIX",
      "url": "https://github.com/koajs/koa/issues/1892#issue-3213028583"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}