{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:erlang:erlang\\/otp:*:*:*:*:*:*:*:*",
            "extracted_events": [
              {
                "introduced": "17.0"
              },
              {
                "fixed": "26.2.5.19"
              },
              {
                "introduced": "27.0"
              },
              {
                "fixed": "27.3.4.10"
              },
              {
                "introduced": "28.0"
              },
              {
                "fixed": "28.4.2"
              }
            ],
            "source": [
              "CPE_RANGE",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "07b8f441ca711f9812fad9e9115bab3c3aa92f79"
            },
            {
              "fixed": "cdb375af6b456946b1ff3fc993d122018f20b031"
            },
            {
              "introduced": "601a012837ea0a5c8095bf24223132824177124d"
            },
            {
              "fixed": "0aa261a7765c9698aabc7f7c5be878a8850a9c5f"
            },
            {
              "introduced": "9e6f6742c4d9e9915ee8af0dcb7d97cf1f836116"
            },
            {
              "fixed": "002fa5032baa0f6a8c4587c81f60e3273775a4d1"
            },
            {
              "fixed": "8fc71ac6af4fbcc54103bec2983ef22e82942688"
            },
            {
              "fixed": "9dfa0c51eac97866078e808dec2183cb7871ff7c"
            }
          ],
          "repo": "https://github.com/erlang/otp",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-3vhp-h532-mc3f"
  ],
  "database_specific": {
    "cna_assigner": "EEF",
    "cwe_ids": [
      "CWE-863"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/28xxx/CVE-2026-28808.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "introduced": "5.10"
          },
          {
            "fixed": "*"
          },
          {
            "introduced": "17.0"
          },
          {
            "fixed": "*"
          },
          {
            "introduced": "07b8f441ca711f9812fad9e9115bab3c3aa92f79"
          },
          {
            "fixed": "*"
          }
        ],
        "source": "AFFECTED_FIELD"
      }
    ]
  },
  "details": "Incorrect Authorization vulnerability in Erlang OTP (inets modules) allows unauthenticated access to CGI scripts protected by directory rules when served via script_alias.\n\nWhen script_alias maps a URL prefix to a directory outside DocumentRoot, mod_auth evaluates directory-based access controls against the DocumentRoot-relative path while mod_cgi executes the script at the ScriptAlias-resolved path. This path mismatch allows unauthenticated access to CGI scripts that directory rules were meant to protect.\n\nThis vulnerability is associated with program files lib/inets/src/http_server/mod_alias.erl, lib/inets/src/http_server/mod_auth.erl, and lib/inets/src/http_server/mod_cgi.erl.\n\nThis issue affects OTP from OTP 17.0 until OTP 28.4.2, 27.3.4.10 and 26.2.5.19 corresponding to inets from 5.10 until 9.6.2, 9.3.2.4 and 9.1.0.6.",
  "id": "CVE-2026-28808",
  "modified": "2026-07-16T03:31:17.216586801Z",
  "published": "2026-04-07T12:28:16.056Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://cna.erlef.org/cves/CVE-2026-28808.html"
    },
    {
      "type": "WEB",
      "url": "https://github.com"
    },
    {
      "type": "WEB",
      "url": "https://osv.dev/vulnerability/EEF-CVE-2026-28808"
    },
    {
      "type": "WEB",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-28808.json"
    },
    {
      "type": "WEB",
      "url": "https://www.erlang.org/doc/system/versions.html#order-of-versions"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/security/cve/CVE-2026-28808"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/28xxx/CVE-2026-28808.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/erlang/otp/security/advisories/GHSA-3vhp-h532-mc3f"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-28808"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2455909"
    },
    {
      "type": "FIX",
      "url": "https://github.com/erlang/otp/commit/8fc71ac6af4fbcc54103bec2983ef22e82942688"
    },
    {
      "type": "FIX",
      "url": "https://github.com/erlang/otp/commit/9dfa0c51eac97866078e808dec2183cb7871ff7c"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/erlang/otp"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "ScriptAlias CGI targets bypass directory auth in inets httpd (mod_auth vs mod_cgi path mismatch)"
}