{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "0.12.11"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0ba157eff167c1b2d1bc0c3e13975b7a73fb9d25"
            }
          ],
          "repo": "https://github.com/editorconfig/editorconfig-core-c",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-97xg-vrcq-254h"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-121",
      "CWE-787"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40489.json"
  },
  "details": "editorconfig-core-c  is an EditorConfig core library for use by plugins supporting EditorConfig parsing. Versions up to and including 0.12.10 have a stack-based buffer overflow in ec_glob() that allows an attacker to crash any application using libeditorconfig by providing a specially crafted directory structure and .editorconfig file. This is an incomplete fix for CVE-2023-0341. The pcre_str buffer was protected in 0.12.6 but the adjacent l_pattern[8194] stack buffer received no equivalent protection. On Ubuntu 24.04, FORTIFY_SOURCE converts the overflow to SIGABRT (DoS). Version 0.12.11 contains an updated fix.",
  "id": "CVE-2026-40489",
  "modified": "2026-08-04T11:31:02.334037839Z",
  "published": "2026-04-18T01:24:57.278Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/editorconfig/editorconfig-core-c/releases/tag/v0.12.11"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40489.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/editorconfig/editorconfig-core-c/security/advisories/GHSA-97xg-vrcq-254h"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-40489"
    },
    {
      "type": "FIX",
      "url": "https://github.com/editorconfig/editorconfig-core-c/commit/5159be88ad50641d9843289adda791ba300421ff"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "editorconfig-core-c has incomplete fix for CVE-2023-0341"
}