{"id":"CVE-2026-100503","summary":"Ghidra through 12.1.4 Heap Use-After-Free in Decompiler","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.","modified":"2026-09-27T03:47:23.540783237Z","published":"2026-09-26T00:36:31.894Z","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"},"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"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/nationalsecurityagency/ghidra","events":[{"introduced":"0"},{"fixed":"8b6bbb857accdfa20dc5b2f5dea471178c2e9fbc"},{"fixed":"5ef1ee4d7a25a65db195f3a70f681ca74440be61"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"12.1.4"}],"source":["DESCRIPTION","REFERENCES"]}}],"versions":["Ghidra_12.1.3_build","Ghidra_12.1_build","Ghidra_12.1.2_build","Ghidra_12.1.1_build","Ghidra_10.3_build","Ghidra_9.0.1_build"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-100503.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","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"}]}