{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "5.0.0"
              },
              {
                "last_affected": "5.0.0"
              },
              {
                "introduced": "5.0.1"
              },
              {
                "last_affected": "5.0.1"
              },
              {
                "introduced": "5.0.2"
              },
              {
                "last_affected": "5.0.2"
              },
              {
                "introduced": "5.0.3"
              },
              {
                "last_affected": "5.0.3"
              },
              {
                "introduced": "5.0.4"
              },
              {
                "last_affected": "5.0.4"
              },
              {
                "introduced": "5.0.5"
              },
              {
                "last_affected": "5.0.5"
              },
              {
                "introduced": "5.0.6"
              },
              {
                "last_affected": "5.0.6"
              },
              {
                "introduced": "5.0.7"
              },
              {
                "last_affected": "5.0.7"
              },
              {
                "introduced": "5.0.8"
              },
              {
                "last_affected": "5.0.8"
              },
              {
                "introduced": "5.0.9"
              },
              {
                "last_affected": "5.0.9"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "5bcd6caaea010a4ffbd3c4e63d2061b8a3559512"
            },
            {
              "last_affected": "242dfd09510e937574758da76ddc644b71f8cc4f"
            }
          ],
          "repo": "https://github.com/diffsk/configobj",
          "type": "GIT"
        }
      ],
      "versions": [
        "5.0.0",
        "5.0.1",
        "5.0.2",
        "5.0.3",
        "5.0.4",
        "5.0.5",
        "5.0.6",
        "5.0.7",
        "5.0.8",
        "5.0.9"
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "VulDB",
    "cwe_ids": [
      "CWE-1333",
      "CWE-400"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/112xxx/CVE-2026-112300.json"
  },
  "details": "A vulnerability was identified in DiffSK configobj up to 5.0.9. Affected by this vulnerability is the function _sectionmarker of the file configobj/__init__.py. The manipulation leads to inefficient regular expression complexity. Remote exploitation of the attack is possible. The project was informed of the problem early through an issue report but has not responded yet.",
  "id": "CVE-2026-112300",
  "modified": "2026-10-20T10:31:17.019541377Z",
  "published": "2026-10-19T20:30:18.020Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/112xxx/CVE-2026-112300.json"
    },
    {
      "type": "WEB",
      "url": "https://github.com/DiffSK/configobj/"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/DiffSK/configobj/issues/281"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-112300"
    },
    {
      "type": "ADVISORY",
      "url": "https://vuldb.com/cve/CVE-2026-112300"
    },
    {
      "type": "ADVISORY",
      "url": "https://vuldb.com/submit/989395"
    },
    {
      "type": "ADVISORY",
      "url": "https://vuldb.com/vuln/422346"
    },
    {
      "type": "REPORT",
      "url": "https://vuldb.com/vuln/422346/cti"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X",
      "type": "CVSS_V4"
    }
  ],
  "summary": "DiffSK configobj __init__.py _sectionmarker redos"
}