{"id":"CVE-2026-52759","summary":"Ghidra \u003c 12.1.1 - Denial of Service via Uncontrolled Memory Allocation in Mach-O Parser","details":"Ghidra before 12.1.1 contains an uncontrolled memory allocation vulnerability in the Mach-O binary parser that allows attackers to cause denial of service. An attacker can supply a crafted Mach-O binary with an arbitrarily large ncmds load command count value, forcing the parser to allocate excessive heap memory without validating file size, crashing the Ghidra JVM.","aliases":["GHSA-v6c3-h9cp-3whf"],"modified":"2026-07-08T08:14:02.754995583Z","published":"2026-06-10T12:43:09.584Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/52xxx/CVE-2026-52759.json","cwe_ids":["CWE-789"],"cna_assigner":"VulnCheck"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/52xxx/CVE-2026-52759.json"},{"type":"ADVISORY","url":"https://github.com/NationalSecurityAgency/ghidra/security/advisories/GHSA-v6c3-h9cp-3whf"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-52759"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/ghidra-denial-of-service-via-uncontrolled-memory-allocation-in-mach-o-parser"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/nationalsecurityagency/ghidra","events":[{"introduced":"0"},{"fixed":"443b972a420667a4f76c25db0e434deed6609a9f"}],"database_specific":{"cpe":"cpe:2.3:a:nsa:ghidra:*:*:*:*:*:*:*:*","source":["AFFECTED_FIELD","CPE_RANGE"],"extracted_events":[{"introduced":"0"},{"fixed":"12.1.1"}]}}],"versions":["Ghidra_12.1_build","Ghidra_10.3_build","Ghidra_9.0.1_build"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-52759.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"}]}