{"id":"CVE-2026-5759","revision":"11865601b2c649d980c9a3296928e2e9","records":[{"revision":"11865601b2c649d980c9a3296928e2e9","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-5759","aliases":[],"title":"Double free and use-after-free in FalkorDB RdbLoadDeletedNodes allows remote code execution via crafted RDB","description":"A double free and use-after-free vulnerability in the RdbLoadDeletedNodes function of the RDB graph decoders (src/serializers/decoders/*/decode_graph_entities.c) in FalkorDB before 4.18.1 allows a remote attacker who can issue Redis replication commands (for example, against an instance with no password configured) to cause a denial of service or execute arbitrary code in the redis-server process by supplying a crafted RDB stream whose deleted-nodes buffer length is not a multiple of sizeof(NodeID). The length check relies on ASSERT(), which is compiled out in release builds, so the function continues after freeing the buffer, reading it and freeing it a second time.","state":0,"publishedAt":"2026-10-09T04:04:28.078+00:00","modifiedAt":"2026-10-13T17:01:45.296+00:00","affected":[{"ecosystem":"https://github.com/FalkorDB/FalkorDB","name":"FalkorDB","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"FalkorDB\",\n                    \"product\": \"FalkorDB\",\n                    \"collectionURL\": \"https://github.com/FalkorDB/FalkorDB\",\n                    \"repo\": \"https://github.com/FalkorDB/FalkorDB\",\n                    \"modules\": [\n                        \"RDB serializer / graph decoder\"\n                    ],\n                    \"programFiles\": [\n                        \"src/serializers/decoders/current/v19/decode_graph_entities.c\",\n                        \"src/serializers/decoders/prev/v18/decode_graph_entities.c\",\n                        \"src/serializers/decoders/prev/v17/decode_graph_entities.c\"\n                    ],\n                    \"programRoutines\": [\n                        {\n                            \"name\": \"RdbLoadDeletedNodes_v17\"\n                        },\n                        {\n                            \"name\": \"RdbLoadDeletedNodes_v18\"\n                        },\n                        {\n                            \"name\": \"RdbLoadDeletedNodes_v19\"\n                        }\n                    ],\n                    \"cpes\": [\n                        \"cpe:2.3:a:falkordb:falkordb:*:*:*:*:*:*:*:*\"\n                    ],\n                    \"defaultStatus\": \"unaffected\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"4.18.1\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","score":9.3,"severity":"CRITICAL"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8,"severity":"CRITICAL"}],"references":["https://github.com/FalkorDB/FalkorDB/pull/1843","https://github.com/FalkorDB/FalkorDB/commit/523d98ac7ffe99f11a9c95c258025c235f0dff4c","https://github.com/FalkorDB/FalkorDB/releases/tag/v4.18.1"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-5759","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-5759","identifiers":["CVE-2026-5759"]},"retained":false,"historicalAffected":[]}],"coverage":[]}