{"id":"CVE-2026-5759","title":"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 repl…","summary":"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 repl…","severity":"critical","cvss":9.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-415","CWE-416"],"published":"2026-10-09","updated":"2026-10-09","sourceUpdated":"2026-10-09T05:16:45.043","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-5759","references":[{"url":"https://github.com/FalkorDB/FalkorDB/commit/523d98ac7ffe99f11a9c95c258025c235f0dff4c","label":"33c584b5-0579-4c06-b2a0-8d8329fcab9c"},{"url":"https://github.com/FalkorDB/FalkorDB/pull/1843","label":"33c584b5-0579-4c06-b2a0-8d8329fcab9c"},{"url":"https://github.com/FalkorDB/FalkorDB/releases/tag/v4.18.1","label":"33c584b5-0579-4c06-b2a0-8d8329fcab9c"}],"tags":["nvd"],"ingestedAt":"2026-10-09T05:26:07.005Z","slug":"CVE-2026-5759","body":"## Overview\n\nA 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":54,"depthScoreParts":{"impact":53.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}