{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "1.9.x"
              },
              {
                "last_affected": "1.9.x"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "82001f32ed9e76b0515a19ee0cc5be28c8ee0541"
            },
            {
              "fixed": "f9775af1a0ec76db60c7213241e6b48f1be10ac7"
            }
          ],
          "repo": "https://github.com/the-tcpdump-group/libpcap",
          "type": "GIT"
        }
      ],
      "versions": [
        "1.9.x"
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Tcpdump",
    "cwe_ids": [
      "CWE-401"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/18xxx/CVE-2026-18313.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "introduced": "1.10.x"
          },
          {
            "fixed": "1.10.7"
          }
        ],
        "source": "AFFECTED_FIELD"
      }
    ]
  },
  "details": "rpcapd can allocate up to 65536 bytes per each RPCAP_MSG_UPDATEFILTER_REQ or RPCAP_MSG_STARTCAP_REQ message received from the client, but it never frees the memory, so it leaks memory even under normal use.  A malicious client can cause the server to leak memory substantially faster.",
  "id": "CVE-2026-18313",
  "modified": "2026-09-07T03:30:40.693405871Z",
  "published": "2026-09-05T18:51:32.438Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/the-tcpdump-group/libpcap/"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/18xxx/CVE-2026-18313.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-18313"
    },
    {
      "type": "FIX",
      "url": "https://github.com/the-tcpdump-group/libpcap/commit/f9775af1a0ec76db60c7213241e6b48f1be10ac7"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "rpcapd memory leak in libpcap before 1.10.7"
}