Security advisory

{
  "id": "c4169905630ea4ad9c99b7a72ae164f555ea5487947c86991befbf8f71159ce5",
  "url": "https://osv.dev/vulnerability/CVE-2023-49606",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2023-49606",
    "summary": "A use-after-free vulnerability exists in the HTTP Connection Headers parsing in Tinyproxy 1.11.1 and Tinyproxy 1.10.0. A specially crafted HTTP header can trigger reuse of previously freed memory, which leads to memory corruption and could lead to remote code execution. An attacker needs to make an unauthenticated HTTP request to trigger this vulnerability.",
    "evidence": "osv:CVE-2023-49606",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2023-49606",
      "aliases": [
        "CVE-2023-49606"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/tinyproxy/tinyproxy",
              "type": "GIT",
              "events": [
                {
                  "introduced": "a662c11b8d106e0a2f3379b89739ed4770c5bbd3"
                },
                {
                  "last_affected": "90adf28663874e6d34d3eebeae6279906443aea5"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:tinyproxy_project:tinyproxy:1.10.0:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.10.0"
                      },
                      {
                        "last_affected": "1.10.0"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "cpe": "cpe:2.3:a:tinyproxy_project:tinyproxy:1.11.1:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.11.1"
                      },
                      {
                        "last_affected": "1.11.1"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.10.0",
            "1.11.1",
            "1.11.0",
            "1.11.0-rc1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-49606.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:53.137979182Z",
      "provider": "osv",
      "references": [
        "https://lists.debian.org/debian-lts-announce/2024/09/msg00035.html",
        "https://talosintelligence.com/vulnerability_reports/TALOS-2023-1889",
        "https://www.talosintelligence.com/vulnerability_reports/TALOS-2023-1889",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/49xxx/CVE-2023-49606.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2023-49606"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-416"
        ],
        "cna_assigner": "talos",
        "unresolved_ranges": [
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "1.11.1"
                  },
                  {
                    "last_affected": "1.11.1"
                  },
                  {
                    "introduced": "Tinyproxy 1.10.0"
                  },
                  {
                    "last_affected": "Tinyproxy 1.10.0"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StandaloneSingleVersion"
              }
            ]
          }
        ],
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/49xxx/CVE-2023-49606.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2023-49606",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 521957,
  "published_at": "2024-05-01T15:31:01.499+00:00"
}