{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "12.1.4"
              }
            ],
            "source": [
              "DESCRIPTION",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "8b6bbb857accdfa20dc5b2f5dea471178c2e9fbc"
            },
            {
              "fixed": "5ef1ee4d7a25a65db195f3a70f681ca74440be61"
            }
          ],
          "repo": "https://github.com/nationalsecurityagency/ghidra",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-416"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/100xxx/CVE-2026-100503.json"
  },
  "details": "Ghidra versions through 12.1.4 contain a heap use-after-free vulnerability in the decompiler's Funcdata::opInsertAfter function caused by stale INDIRECT effect-op references. Attackers can craft a malicious binary with a specific x86-64 sequence that triggers the vulnerability during decompilation, causing the decompile helper process to crash and denying service to analysts and automated analysis pipelines.",
  "id": "CVE-2026-100503",
  "modified": "2026-09-27T03:30:53.658124237Z",
  "published": "2026-09-26T00:36:31.894Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/100xxx/CVE-2026-100503.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-100503"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/ghidra-through-12.1.4-heap-use-after-free-in-decompiler"
    },
    {
      "type": "FIX",
      "url": "https://github.com/NationalSecurityAgency/ghidra/commit/5ef1ee4d7a25a65db195f3a70f681ca74440be61"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/NationalSecurityAgency/ghidra"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/NationalSecurityAgency/ghidra/blob/8b6bbb857accdfa20dc5b2f5dea471178c2e9fbc/Ghidra/Features/Decompiler/src/decompile/cpp/merge.cc#L462-L472"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/NationalSecurityAgency/ghidra/blob/8b6bbb857accdfa20dc5b2f5dea471178c2e9fbc/Ghidra/Features/Decompiler/src/decompile/cpp/subflow.cc#L2717-L2745"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Ghidra through 12.1.4 Heap Use-After-Free in Decompiler"
}