{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6db65cbca13cceb1f28516fc821d0134e426cc0c"
            }
          ],
          "repo": "https://github.com/maximmasiutin/tinyweb",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-r3gf-pg2c-m7mc"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-114",
      "CWE-20",
      "CWE-74",
      "CWE-93"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/29xxx/CVE-2026-29046.json"
  },
  "details": "TinyWeb is a web server (HTTP, HTTPS) written in Delphi for Win32. Prior to version 2.04, TinyWeb accepts request header values and later maps them into CGI environment variables (HTTP_*). The parser did not strictly reject dangerous control characters in header lines and header values, including CR, LF, and NUL, and did not consistently defend against encoded forms such as %0d, %0a, and %00. This can enable header value confusion across parser boundaries and may create unsafe data in the CGI execution context. This issue has been patched in version 2.04.",
  "id": "CVE-2026-29046",
  "modified": "2026-04-01T23:08:00.860610667Z",
  "published": "2026-03-06T02:54:11.026Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/29xxx/CVE-2026-29046.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/maximmasiutin/TinyWeb/security/advisories/GHSA-r3gf-pg2c-m7mc"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-29046"
    },
    {
      "type": "FIX",
      "url": "https://github.com/maximmasiutin/TinyWeb/commit/53aa8b6e5146491d7be57920e3fc50d7a34e4d5a"
    }
  ],
  "schema_version": "1.7.3",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:L/SC:N/SI:H/SA:L",
      "type": "CVSS_V4"
    }
  ],
  "summary": "TinyWeb: HTTP Header Control Character Injection into CGI Environment"
}