{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-7827", "assignerOrgId": "33c584b5-0579-4c06-b2a0-8d8329fcab9c", "state": "PUBLISHED", "assignerShortName": "securin", "dateReserved": "2026-05-05T02:50:42.544Z", "datePublished": "2026-10-09T04:04:29.094Z", "dateUpdated": "2026-10-09T04:04:29.094Z"}, "containers": {"cna": {"title": "Stack-based buffer overflow in FalkorDB _RdbLoadEntity via unbounded property count in crafted RDB", "descriptions": [{"lang": "en", "value": "A stack-based buffer overflow in the _RdbLoadEntity function of the RDB graph decoders (src/serializers/decoders/*/decode_graph_entities.c) in FalkorDB before 4.18.4 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 and possibly execute arbitrary code by supplying a crafted RDB stream with an attacker-controlled entity property count. The count sizes two variable-length arrays on the thread stack with no upper bound, and the decoder then fills them with attacker-supplied values."}], "affected": [{"vendor": "FalkorDB", "product": "FalkorDB", "collectionURL": "https://github.com/FalkorDB/FalkorDB", "repo": "https://github.com/FalkorDB/FalkorDB", "modules": ["RDB serializer / graph decoder"], "programFiles": ["src/serializers/decoders/current/v19/decode_graph_entities.c", "src/serializers/decoders/prev/v18/decode_graph_entities.c", "src/serializers/decoders/prev/v17/decode_graph_entities.c", "src/serializers/decoders/prev/v16/decode_graph_entities.c", "src/serializers/decoders/prev/v15/decode_graph_entities.c", "src/serializers/decoders/prev/v14/decode_graph_entities.c", "src/serializers/decoders/prev/v13/decode_graph_entities.c", "src/serializers/decoders/prev/v12/decode_graph_entities.c", "src/serializers/decoders/prev/v11/decode_graph_entities.c", "src/serializers/decoders/prev/v10/decode_graph_entities.c"], "programRoutines": [{"name": "_RdbLoadEntity"}], "cpes": ["cpe:2.3:a:falkordb:falkordb:*:*:*:*:*:*:*:*"], "defaultStatus": "unaffected", "versions": [{"version": "0", "lessThan": "4.18.4", "status": "affected", "versionType": "semver"}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-121", "description": "CWE-121 Stack-based Buffer Overflow"}]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N", "baseScore": 9.2, "baseSeverity": "CRITICAL"}}, {"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 8.1, "baseSeverity": "HIGH"}}], "solutions": [{"lang": "en", "value": "Upgrade FalkorDB to version 4.18.4 or later."}], "workarounds": [{"lang": "en", "value": "Require authentication on the Redis/FalkorDB instance (requirepass or ACLs), restrict or rename the REPLICAOF/SLAVEOF commands so untrusted clients cannot use them, and do not expose the instance to untrusted networks."}], "references": [{"url": "https://github.com/FalkorDB/FalkorDB/pull/1973", "name": "FalkorDB PR #1973", "tags": ["patch"]}, {"url": "https://github.com/FalkorDB/FalkorDB/commit/7d15431aadf37588fadc2578b90c3afb5e8daa94", "name": "Fix commit", "tags": ["patch"]}, {"url": "https://github.com/FalkorDB/FalkorDB/releases/tag/v4.18.4", "name": "FalkorDB 4.18.4 release notes", "tags": ["release-notes"]}], "credits": [{"lang": "en", "type": "finder", "value": "Arjun Basnet from Securin"}], "timeline": [{"time": "2026-04-24T00:00:00.000Z", "lang": "en", "value": "Reported to FalkorDB"}, {"time": "2026-05-05T00:00:00.000Z", "lang": "en", "value": "CVE ID shared with the vendor"}, {"time": "2026-05-07T00:00:00.000Z", "lang": "en", "value": "Fix merged by the vendor (PR #1973)"}, {"time": "2026-05-07T00:00:00.000Z", "lang": "en", "value": "FalkorDB 4.18.4 released with the fix"}], "source": {"discovery": "EXTERNAL"}, "impacts": [{"capecId": "CAPEC-100", "descriptions": [{"lang": "en", "value": "CAPEC-100 Overflow Buffers"}]}], "providerMetadata": {"orgId": "33c584b5-0579-4c06-b2a0-8d8329fcab9c", "shortName": "securin", "dateUpdated": "2026-10-09T04:04:29.094Z"}}}}

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