{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-107910","assignerOrgId":"33c584b5-0579-4c06-b2a0-8d8329fcab9c","state":"PUBLISHED","assignerShortName":"securin","dateReserved":"2026-10-09T04:54:55.521Z","datePublished":"2026-10-09T05:08:13.092Z","dateUpdated":"2026-10-15T16:06:12.963Z"},"containers":{"cna":{"providerMetadata":{"orgId":"33c584b5-0579-4c06-b2a0-8d8329fcab9c","shortName":"securin","dateUpdated":"2026-10-09T05:08:13.092Z"},"title":"Authentication bypass in FalkorDB Bolt endpoint via fail-open AUTH probe error handling","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"FalkorDB","product":"FalkorDB","collectionURL":"https://github.com/FalkorDB/FalkorDB","repo":"https://github.com/FalkorDB/FalkorDB","modules":["Bolt protocol endpoint"],"programFiles":["src/bolt/bolt_api.c"],"programRoutines":[{"name":"is_authenticated"}],"cpes":["cpe:2.3:a:falkordb:falkordb:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","versions":[{"version":"0","lessThan":"4.20.0","status":"affected","versionType":"semver"}]}],"problemTypes":[{"descriptions":[{"lang":"en","type":"CWE","cweId":"CWE-287","description":"CWE-287 Improper Authentication"}]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"version":"4.0","vectorString":"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","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 4.20.0 or later. Bolt protocol support, including the code affected by this issue, was removed in 4.20.0."}],"workarounds":[{"lang":"en","value":"Leave the Bolt endpoint disabled (do not set the BOLT_PORT module configuration; it is disabled by default), or restrict network access to the Bolt port to trusted clients."}],"references":[{"url":"https://github.com/FalkorDB/FalkorDB/pull/2170","name":"FalkorDB PR #2170","tags":["patch"]},{"url":"https://github.com/FalkorDB/FalkorDB/commit/0b11a00b34b25c4d4fdfe55f0a35c8a00593bd7d","name":"Fix commit","tags":["patch"]},{"url":"https://github.com/FalkorDB/FalkorDB/releases/tag/v4.20.0","name":"FalkorDB 4.20.0 release notes","tags":["release-notes"]}],"credits":[{"lang":"en","type":"finder","value":"Arjun Basnet from Securin"}],"timeline":[{"time":"2026-06-29T00:00:00.000Z","lang":"en","value":"Reported to FalkorDB"},{"time":"2026-06-29T00:00:00.000Z","lang":"en","value":"Vendor acknowledged the report"},{"time":"2026-07-08T00:00:00.000Z","lang":"en","value":"Vendor removed Bolt protocol support (PR #2170)"},{"time":"2026-07-13T00:00:00.000Z","lang":"en","value":"FalkorDB 4.20.0 released without Bolt support"},{"time":"2026-09-27T00:00:00.000Z","lang":"en","value":"Coordinated disclosure period ended"}],"source":{"discovery":"EXTERNAL"},"impacts":[{"capecId":"CAPEC-115","descriptions":[{"lang":"en","value":"CAPEC-115 Authentication Bypass"}]}]},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-15T16:05:40.330131Z","id":"CVE-2026-107910","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-10-15T16:06:12.963Z"}}]}}