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CVE-2026-107911— Type confusion in FalkorDB GRAPH.QUERY via the --bolt argument

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.

在 FalkorDB 4.20.0 版本之前，_read_flags 函数（位于 src/commands/cmd_dispatcher.c）中存在一个类型混淆漏洞。该漏洞允许能够执行 GRAPH.QUERY 的远程认证攻击者造成拒绝服务，并可能导致内存信息泄露或内存损坏。该函数接受来自任意客户端的 --bolt 参数，并将后续的命令参数（一个 Redis 字符串对象）强制转换为 Bolt 客户端结构体，而未对其来源进行任何验证。随后，结果集代码会从该对象中解引用指针。即使 Bolt 端点处于禁用状态，该参数仍会被

CVSS 7.5 · High
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I. Basic Information for CVE-2026-107911

Vulnerability Information
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Vulnerability Title
Type confusion in FalkorDB GRAPH.QUERY via the --bolt argument
Source: CVE Program / CVE List V5
Vulnerability Description
A type confusion vulnerability in the _read_flags function (src/commands/cmd_dispatcher.c) in FalkorDB before 4.20.0 allows a remote authenticated attacker who can run GRAPH.QUERY to cause a denial of service and possibly disclose or corrupt memory. The function accepts a --bolt argument from any client and casts the following command argument, a Redis string object, to a Bolt client structure without checking its origin; the result-set code then dereferences pointers read from that object. The argument is parsed even when the Bolt endpoint is disabled, so default configurations are affected.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
使用不兼容类型访问资源(类型混淆)
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-2026-107911

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III. Intelligence Information for CVE-2026-107911

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Patches & Fixes for CVE-2026-107911 (1)

Vendor Pages for CVE-2026-107911 (1)

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-2026-107910 8.1 HIGH Authentication bypass in FalkorDB Bolt endpoint via fail-open AUTH probe error handling

IV. Related Vulnerabilities

Same product: FalkorDB
Same vendor: FalkorDB
Same weakness: CWE-843

V. Comments for CVE-2026-107911

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