{"id":"CVE-2026-107910","revision":"98a645c0e9704fbdb678a4a578f37d4a","records":[{"revision":"98a645c0e9704fbdb678a4a578f37d4a","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-107910","aliases":[],"title":"Authentication bypass in FalkorDB Bolt endpoint via fail-open AUTH probe error handling","description":"An improper authentication vulnerability in the is_authenticated function (src/bolt/bolt_api.c) in FalkorDB before 4.20.0 allows a remote unauthenticated attacker to execute graph queries without credentials through the Bolt endpoint. The function decides whether a password is required by issuing an empty AUTH command to Redis and treats only a WRONGPASS error as meaning that a password is required; any other error, such as LOADING while a dataset is being loaded, MASTERDOWN during replication failover, or OOM under memory pressure, causes the client to be treated as authenticated. Only deployments that enable the Bolt endpoint (BOLT_PORT, disabled by default) are affected.","state":0,"publishedAt":"2026-10-09T05:08:13.092+00:00","modifiedAt":"2026-10-15T16:06:12.963+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                        \"Bolt protocol endpoint\"\n                    ],\n                    \"programFiles\": [\n                        \"src/bolt/bolt_api.c\"\n                    ],\n                    \"programRoutines\": [\n                        {\n                            \"name\": \"is_authenticated\"\n                        }\n                    ],\n                    \"cpes\": [\n                        \"cpe:2.3:a:falkordb:falkordb:*:*:*:*:*:*:*:*\"\n                    ],\n                    \"defaultStatus\": \"unaffected\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"4.20.0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","score":9.2,"severity":"CRITICAL"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","score":8.1,"severity":"HIGH"}],"references":["https://github.com/FalkorDB/FalkorDB/pull/2170","https://github.com/FalkorDB/FalkorDB/commit/0b11a00b34b25c4d4fdfe55f0a35c8a00593bd7d","https://github.com/FalkorDB/FalkorDB/releases/tag/v4.20.0"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-107910","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-107910","identifiers":["CVE-2026-107910"]},"retained":false,"historicalAffected":[]}],"coverage":[]}