Security advisory

{
  "id": "f78e067ca72400ca00f59f72f8f218784eb9ae8b58afda2f8eb61100bf4933a3",
  "url": "https://osv.dev/vulnerability/CVE-2023-46218",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2023-46218",
    "summary": "This flaw allows a malicious HTTP server to set \"super cookies\" in curl that are then passed back to more origins than what is otherwise allowed or possible. This allows a site to set cookies that then would get sent to different and unrelated sites and domains. It could do this by exploiting a mixed case flaw in curl's function that verifies a given cookie domain against the Public Suffix List (PSL). For example a cookie could be set with `domain=co.UK` when the URL used a lower case hostname `curl.co.uk`, even though `co.uk` is listed as a PSL domain.",
    "evidence": "osv:CVE-2023-46218",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2023-46218",
      "aliases": [
        "CURL-CVE-2023-46218",
        "CVE-2023-46218"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/curl/curl",
              "type": "GIT",
              "events": [
                {
                  "introduced": "e2ae32ff5f3ab6f0819590f61f248f17df12987f"
                },
                {
                  "last_affected": "172e54cda18412da73fd8eb4e444e8a5b371ca59"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "7.46.0"
                      },
                      {
                        "last_affected": "8.4.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "tiny-curl-8_4_0",
            "curl-8_4_0",
            "curl-8_3_0",
            "curl-8_2_1",
            "curl-8_2_0",
            "curl-8_1_2",
            "curl-8_1_1",
            "curl-8_1_0",
            "curl-8_0_1",
            "curl-8_0_0",
            "curl-7_88_1",
            "curl-7_88_0",
            "curl-7_87_0",
            "curl-7_86_0",
            "curl-7_85_0",
            "curl-7_84_0",
            "curl-7_83_1",
            "curl-7_83_0",
            "curl-7_82_0",
            "curl-7_81_0",
            "curl-7_80_0",
            "curl-7_79_1",
            "curl-7_79_0",
            "curl-7_78_0",
            "curl-7_77_0",
            "curl-7_76_1",
            "curl-7_76_0",
            "curl-7_75_0",
            "curl-7_74_0",
            "curl-7_73_0",
            "curl-7_72_0",
            "curl-7_71_1",
            "curl-7_71_0",
            "curl-7_70_0",
            "curl-7_69_1",
            "curl-7_69_0",
            "curl-7_68_0",
            "curl-7_67_0",
            "curl-7_66_0",
            "curl-7_65_3",
            "curl-7_65_2",
            "curl-7_65_1",
            "curl-7_65_0",
            "curl-7_64_1",
            "curl-7_64_0",
            "curl-7_63_0",
            "curl-7_62_0",
            "curl-7_61_1",
            "curl-7_61_0",
            "curl-7_60_0",
            "curl-7_59_0",
            "curl-7_58_0",
            "curl-7_57_0",
            "curl-7_56_1",
            "curl-7_56_0",
            "curl-7_55_1",
            "curl-7_55_0",
            "curl-7_54_1",
            "curl-7_54_0",
            "curl-7_53_1",
            "curl-7_53_0",
            "curl-7_52_1",
            "curl-7_52_0",
            "curl-7_51_0",
            "curl-7_50_3",
            "curl-7_50_2",
            "curl-7_50_1",
            "curl-7_50_0",
            "curl-7_49_1",
            "curl-7_49_0",
            "curl-7_48_0",
            "curl-7_47_1",
            "curl-7_47_0",
            "curl-7_46_0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-46218.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:44.425497939Z",
      "provider": "osv",
      "references": [
        "https://cert-portal.siemens.com/productcert/html/ssa-082556.html",
        "https://cert-portal.siemens.com/productcert/html/ssa-093430.html",
        "https://cert-portal.siemens.com/productcert/html/ssa-202008.html",
        "https://cert-portal.siemens.com/productcert/html/ssa-331112.html",
        "https://curl.se/docs/CVE-2023-46218.html",
        "https://hackerone.com/reports/2212193",
        "https://lists.debian.org/debian-lts-announce/2023/12/msg00015.html",
        "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3ZX3VW67N4ACRAPMV2QS2LVYGD7H2MVE/",
        "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UOGXU25FMMT2X6UUITQ7EZZYMJ42YWWD/",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/46xxx/CVE-2023-46218.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2023-46218",
        "https://security.netapp.com/advisory/ntap-20240125-0007/",
        "https://www.debian.org/security/2023/dsa-5587"
      ],
      "provider_metadata": {
        "cna_assigner": "hackerone",
        "unresolved_ranges": [
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "8.4.0"
                  },
                  {
                    "last_affected": "8.4.0"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StandaloneSingleVersion"
              }
            ]
          }
        ],
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/46xxx/CVE-2023-46218.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2023-46218",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 512460,
  "published_at": "2023-12-07T01:10:34.846+00:00"
}