{"id":"CVE-2026-112300","revision":null,"records":[{"revision":"8ed4346d99d7420bbf9debe81d84e1bf","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-112300","aliases":[],"title":"DiffSK configobj __init__.py _sectionmarker redos","description":"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.","state":0,"publishedAt":"2026-10-19T20:30:18.02+00:00","modifiedAt":"2026-10-20T16:09:34.927+00:00","affected":[{"ecosystem":"Vendor product","name":"configobj","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"DiffSK\",\n                    \"product\": \"configobj\",\n                    \"versions\": [\n                        {\n                            \"version\": \"5.0.0\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"5.0.1\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"5.0.2\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"5.0.3\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"5.0.4\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"5.0.5\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"5.0.6\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"5.0.7\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"5.0.8\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"5.0.9\",\n                            \"status\": \"affected\"\n                        }\n                    ],\n                    \"cpes\": [\n                        \"cpe:2.3:a:diffsk:configobj:*:*:*:*:*:*:*:*\"\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"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","score":6.9,"severity":"MEDIUM"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:X/RL:X/RC:C","score":5.3,"severity":"MEDIUM"},{"system":"CVSS 3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:X/RL:X/RC:C","score":5.3,"severity":"MEDIUM"},{"system":"CVSS 2.0","vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P/E:ND/RL:ND/RC:C","score":5,"severity":null}],"references":["https://vuldb.com/vuln/422346","https://vuldb.com/vuln/422346/cti","https://vuldb.com/cve/CVE-2026-112300","https://vuldb.com/submit/989395","https://github.com/DiffSK/configobj/issues/281","https://github.com/DiffSK/configobj/"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-112300","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-112300","identifiers":["CVE-2026-112300"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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