{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0.8.0"
              },
              {
                "fixed": "1.18.3"
              }
            ],
            "source": [
              "DESCRIPTION",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "fed422b5ec981cc6237b6a2c1be52e4564461bad"
            },
            {
              "fixed": "2eb7a78948f9c3b18509bf28bdc729e07f46e0dc"
            },
            {
              "fixed": "bb1a2c3da2775924d96e3db8e315dcc4d5d2246e"
            }
          ],
          "repo": "https://github.com/elixir-tesla/tesla",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-28jh-g32x-v9v4"
  ],
  "database_specific": {
    "cna_assigner": "EEF",
    "cwe_ids": [
      "CWE-116"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/48xxx/CVE-2026-48598.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "introduced": "6ebfdb9abe9c6f119408045b933d82462decd351"
          },
          {
            "fixed": "bb1a2c3da2775924d96e3db8e315dcc4d5d2246e"
          }
        ],
        "source": "AFFECTED_FIELD"
      }
    ]
  },
  "details": "Improper Encoding or Escaping of Output vulnerability in elixir-tesla tesla allows multipart part header injection via unescaped Content-Disposition parameter values.\n\nTesla.Multipart.part_headers_for_disposition/1 interpolates each disposition parameter as #{k}=\"#{v}\" with no validation of CR (\\r), LF (\\n), or double-quote characters. The values come verbatim from the caller via Tesla.Multipart.add_field/4 (the name parameter), Tesla.Multipart.add_file/3, and Tesla.Multipart.add_file_content/4 (both the filename parameter and other disposition opts). A \" in the value closes the quoted parameter early; a \\r\\n ends the Content-Disposition header line and starts a new part header (such as a forged Content-Type), or, after a second \\r\\n, ends the entire part header block and prepends bytes to the part body. The default-filename path in add_file/3 derives the filename via Path.basename/1, which does not strip CR or LF, so any application forwarding a partially-attacker-controlled file path inherits the same issue.\n\nThis issue affects tesla: from 0.8.0 before 1.18.3.",
  "id": "CVE-2026-48598",
  "modified": "2026-07-08T05:39:24.306014533Z",
  "published": "2026-06-02T19:08:19.921Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://cna.erlef.org/cves/CVE-2026-48598.html"
    },
    {
      "type": "WEB",
      "url": "https://github.com"
    },
    {
      "type": "WEB",
      "url": "https://osv.dev/vulnerability/EEF-CVE-2026-48598"
    },
    {
      "type": "WEB",
      "url": "https://repo.hex.pm"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/48xxx/CVE-2026-48598.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/elixir-tesla/tesla/security/advisories/GHSA-28jh-g32x-v9v4"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-48598"
    },
    {
      "type": "FIX",
      "url": "https://github.com/elixir-tesla/tesla/commit/bb1a2c3da2775924d96e3db8e315dcc4d5d2246e"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/elixir-tesla/tesla"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/elixir-tesla/tesla.git"
    }
  ],
  "schema_version": "1.7.5",
  "severity": [
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "CRLF injection in Tesla.Multipart disposition parameters allows multipart part header injection"
}