CVE-2026-112300 (GCVE-0-2026-112300)
Vulnerability from cvelistv5
Published
2026-10-19 20:30
Modified
2026-10-20 16:09
CWE
  • CWE-1333 - Inefficient Regular Expression Complexity
  • CWE-400 - Resource Consumption
Summary
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.
References
Impacted products
Vendor Product Version
DiffSK configobj Version: 5.0.0
Version: 5.0.1
Version: 5.0.2
Version: 5.0.3
Version: 5.0.4
Version: 5.0.5
Version: 5.0.6
Version: 5.0.7
Version: 5.0.8
Version: 5.0.9
    cpe:2.3:a:diffsk:configobj:*:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website


{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-112300",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-20T15:18:59.728457Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-20T16:09:34.927Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "cpes": [
            "cpe:2.3:a:diffsk:configobj:*:*:*:*:*:*:*:*"
          ],
          "product": "configobj",
          "vendor": "DiffSK",
          "versions": [
            {
              "status": "affected",
              "version": "5.0.0"
            },
            {
              "status": "affected",
              "version": "5.0.1"
            },
            {
              "status": "affected",
              "version": "5.0.2"
            },
            {
              "status": "affected",
              "version": "5.0.3"
            },
            {
              "status": "affected",
              "version": "5.0.4"
            },
            {
              "status": "affected",
              "version": "5.0.5"
            },
            {
              "status": "affected",
              "version": "5.0.6"
            },
            {
              "status": "affected",
              "version": "5.0.7"
            },
            {
              "status": "affected",
              "version": "5.0.8"
            },
            {
              "status": "affected",
              "version": "5.0.9"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "Mohammedix88 (VulDB User)"
        },
        {
          "lang": "en",
          "type": "coordinator",
          "value": "VulDB CNA Team"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "baseScore": 6.9,
            "baseSeverity": "MEDIUM",
            "vectorString": "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",
            "version": "4.0"
          }
        },
        {
          "cvssV3_1": {
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "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",
            "version": "3.1"
          }
        },
        {
          "cvssV3_0": {
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "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",
            "version": "3.0"
          }
        },
        {
          "cvssV2_0": {
            "baseScore": 5,
            "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P/E:ND/RL:ND/RC:C",
            "version": "2.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-1333",
              "description": "Inefficient Regular Expression Complexity",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-400",
              "description": "Resource Consumption",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-19T20:30:18.020Z",
        "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "shortName": "VulDB"
      },
      "references": [
        {
          "name": "VDB-422346 | DiffSK configobj __init__.py _sectionmarker redos",
          "tags": [
            "vdb-entry",
            "technical-description"
          ],
          "url": "https://vuldb.com/vuln/422346"
        },
        {
          "name": "VDB-422346 | CTI Indicators (IOB, IOC, TTP, IOA)",
          "tags": [
            "signature",
            "permissions-required"
          ],
          "url": "https://vuldb.com/vuln/422346/cti"
        },
        {
          "name": "CVE-2026-112300 | CVE Analysis and Report",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/cve/CVE-2026-112300"
        },
        {
          "name": "Submit #989395 | DiffSK configobj 5.0.9 Denial of Service",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/submit/989395"
        },
        {
          "tags": [
            "issue-tracking"
          ],
          "url": "https://github.com/DiffSK/configobj/issues/281"
        },
        {
          "tags": [
            "product"
          ],
          "url": "https://github.com/DiffSK/configobj/"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-10-19T00:00:00.000Z",
          "value": "Advisory disclosed"
        },
        {
          "lang": "en",
          "time": "2026-10-19T02:00:00.000Z",
          "value": "VulDB entry created"
        },
        {
          "lang": "en",
          "time": "2026-10-19T16:09:53.000Z",
          "value": "VulDB entry last update"
        }
      ],
      "title": "DiffSK configobj __init__.py _sectionmarker redos",
      "x_generator": [
        "VulDB PVTS v202610"
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
    "assignerShortName": "VulDB",
    "cveId": "CVE-2026-112300",
    "datePublished": "2026-10-19T20:30:18.020Z",
    "dateReserved": "2026-10-19T14:04:49.020Z",
    "dateUpdated": "2026-10-20T16:09:34.927Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-112300\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-10-20T15:18:59.728457Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-10-20T15:19:00.577Z\"}}], \"cna\": {\"title\": \"DiffSK configobj __init__.py _sectionmarker redos\", \"credits\": [{\"lang\": \"en\", \"type\": \"reporter\", \"value\": \"Mohammedix88 (VulDB User)\"}, {\"lang\": \"en\", \"type\": \"coordinator\", \"value\": \"VulDB CNA Team\"}], \"metrics\": [{\"cvssV4_0\": {\"version\": \"4.0\", \"baseScore\": 6.9, \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"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\"}}, {\"cvssV3_1\": {\"version\": \"3.1\", \"baseScore\": 5.3, \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"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\"}}, {\"cvssV3_0\": {\"version\": \"3.0\", \"baseScore\": 5.3, \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"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\"}}, {\"cvssV2_0\": {\"version\": \"2.0\", \"baseScore\": 5, \"vectorString\": \"AV:N/AC:L/Au:N/C:N/I:N/A:P/E:ND/RL:ND/RC:C\"}}], \"affected\": [{\"cpes\": [\"cpe:2.3:a:diffsk:configobj:*:*:*:*:*:*:*:*\"], \"vendor\": \"DiffSK\", \"product\": \"configobj\", \"versions\": [{\"status\": \"affected\", \"version\": \"5.0.0\"}, {\"status\": \"affected\", \"version\": \"5.0.1\"}, {\"status\": \"affected\", \"version\": \"5.0.2\"}, {\"status\": \"affected\", \"version\": \"5.0.3\"}, {\"status\": \"affected\", \"version\": \"5.0.4\"}, {\"status\": \"affected\", \"version\": \"5.0.5\"}, {\"status\": \"affected\", \"version\": \"5.0.6\"}, {\"status\": \"affected\", \"version\": \"5.0.7\"}, {\"status\": \"affected\", \"version\": \"5.0.8\"}, {\"status\": \"affected\", \"version\": \"5.0.9\"}]}], \"timeline\": [{\"lang\": \"en\", \"time\": \"2026-10-19T00:00:00.000Z\", \"value\": \"Advisory disclosed\"}, {\"lang\": \"en\", \"time\": \"2026-10-19T02:00:00.000Z\", \"value\": \"VulDB entry created\"}, {\"lang\": \"en\", \"time\": \"2026-10-19T16:09:53.000Z\", \"value\": \"VulDB entry last update\"}], \"references\": [{\"url\": \"https://vuldb.com/vuln/422346\", \"name\": \"VDB-422346 | DiffSK configobj __init__.py _sectionmarker redos\", \"tags\": [\"vdb-entry\", \"technical-description\"]}, {\"url\": \"https://vuldb.com/vuln/422346/cti\", \"name\": \"VDB-422346 | CTI Indicators (IOB, IOC, TTP, IOA)\", \"tags\": [\"signature\", \"permissions-required\"]}, {\"url\": \"https://vuldb.com/cve/CVE-2026-112300\", \"name\": \"CVE-2026-112300 | CVE Analysis and Report\", \"tags\": [\"third-party-advisory\"]}, {\"url\": \"https://vuldb.com/submit/989395\", \"name\": \"Submit #989395 | DiffSK configobj 5.0.9 Denial of Service\", \"tags\": [\"third-party-advisory\"]}, {\"url\": \"https://github.com/DiffSK/configobj/issues/281\", \"tags\": [\"issue-tracking\"]}, {\"url\": \"https://github.com/DiffSK/configobj/\", \"tags\": [\"product\"]}], \"x_generator\": [\"VulDB PVTS v202610\"], \"descriptions\": [{\"lang\": \"en\", \"value\": \"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.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-1333\", \"description\": \"Inefficient Regular Expression Complexity\"}]}, {\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-400\", \"description\": \"Resource Consumption\"}]}], \"providerMetadata\": {\"orgId\": \"1af790b2-7ee1-4545-860a-a788eba489b5\", \"shortName\": \"VulDB\", \"dateUpdated\": \"2026-10-19T20:30:18.020Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-112300\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-10-20T16:09:34.927Z\", \"dateReserved\": \"2026-10-19T14:04:49.020Z\", \"assignerOrgId\": \"1af790b2-7ee1-4545-860a-a788eba489b5\", \"datePublished\": \"2026-10-19T20:30:18.020Z\", \"assignerShortName\": \"VulDB\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.


Loading…

Loading…