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CVE-2026-107910— Authentication bypass in FalkorDB Bolt endpoint via fail-open AUTH probe error handling

Quick assessment

Affected
FalkorDB FalkorDB
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

FalkorDB 4.20.0 版本之前，在 文件中的 函数存在不正确的认证漏洞。该漏洞允许远程未认证的攻击者通过 Bolt 端点执行图查询，而无需提供凭据。该函数通过向 Redis 发送空的 AUTH 命令来判断是否需要密码，并仅将 WRONGPASS 错误视为需要密码；任何其他错误（例如在数据集加载期间的 LOADING 错误、复制故障转移期间的 MASTERDOWN 错误，或内存压力下的 OOM 错误）都会导致客户端被视为已认证。因此，只有启用了 Bolt 端点（BOLT_PORT，默认情况下禁用）的部署才会

CVSS 8.1 · High
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I. Basic Information for CVE-2026-107910

Vulnerability Information
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Vulnerability Title
Authentication bypass in FalkorDB Bolt endpoint via fail-open AUTH probe error handling
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
认证机制不恰当
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
FalkorDB FalkorDB 0 ~ 4.20.0 cpe:2.3:a:falkordb:falkordb:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-107910

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III. Intelligence Information for CVE-2026-107910

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Other References for CVE-2026-107910 (3)

Same Patch Batch · FalkorDB · 2026-10-09 · 7 CVEs total

CVE-2026-5759 9.8 CRITICAL Double free and use-after-free in FalkorDB RdbLoadDeletedNodes allows remote code executio
CVE-2026-107908 9.8 CRITICAL Pre-authentication heap out-of-bounds write in FalkorDB Bolt BoltReadHandler via RESET mes
CVE-2026-7826 9.1 CRITICAL Heap out-of-bounds read in FalkorDB BufferSerializerIOv2_ReadBuffer via crafted RDB
CVE-2026-107909 9.1 CRITICAL Pre-authentication heap out-of-bounds write in FalkorDB Bolt WebSocket frame handling via
CVE-2026-7827 8.1 HIGH Stack-based buffer overflow in FalkorDB _RdbLoadEntity via unbounded property count in cra
CVE-2026-107911 7.5 HIGH Type confusion in FalkorDB GRAPH.QUERY via the --bolt argument

IV. Related Vulnerabilities

Same product: FalkorDB
Same vendor: FalkorDB
Same weakness: CWE-287

V. Comments for CVE-2026-107910

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