{"id":"CVE-2026-49496","summary":"Ghidra \u003c 12.1 - Heap-Use-After-Free in SleighBuilder::generatePointerAdd via Vector Reallocation","details":"Ghidra before 12.1 contains a heap-use-after-free vulnerability in SleighBuilder::generatePointerAdd caused by iterator invalidation when PcodeCacher::allocateInstruction reallocates the issued vector. Attackers can trigger memory corruption by decompiling malicious binaries through the public Sleigh::oneInstruction C++ API, affecting downstream SLEIGH library consumers.","aliases":["GHSA-gqh9-2c72-wpjc"],"modified":"2026-07-08T08:05:21.000792648Z","published":"2026-06-10T12:37:30.464Z","database_specific":{"cna_assigner":"VulnCheck","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/49xxx/CVE-2026-49496.json","cwe_ids":["CWE-416"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/49xxx/CVE-2026-49496.json"},{"type":"ADVISORY","url":"https://github.com/NationalSecurityAgency/ghidra/security/advisories/GHSA-gqh9-2c72-wpjc"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-49496"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/ghidra-heap-use-after-free-in-sleighbuilder-generatepointeradd-via-vector-reallocation"},{"type":"FIX","url":"https://github.com/NationalSecurityAgency/ghidra/commit/8a3018d5efcb07d2ec40bacdd6063cb6f01c8edf"},{"type":"PACKAGE","url":"https://github.com/nationalsecurityagency/ghidra"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/nationalsecurityagency/ghidra","events":[{"introduced":"0"},{"fixed":"7e89d94e3478f0b1931c34882a0f606fdb06961f"}],"database_specific":{"cpe":"cpe:2.3:a:nsa:ghidra:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"fixed":"12.1"}],"source":["AFFECTED_FIELD","CPE_RANGE"]}}],"versions":["Ghidra_10.3_build","Ghidra_9.0.1_build"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-49496.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N"}]}