What’s Vulnerable › Vulnerabilities

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

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-09 · updated 2026-10-09
• Weakness: CWE-843

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.

Affected products

• FalkorDB: before 4.20.0 — fixed in 4.20.0

How to fix

Upgrade to a fixed version: FalkorDB 4.20.0. Check the vendor advisory for mitigations.

References

• https://github.com/FalkorDB/FalkorDB/commit/0b11a00b34b25c4d4fdfe55f0a35c8a00593bd7d
• https://github.com/FalkorDB/FalkorDB/pull/2170
• https://github.com/FalkorDB/FalkorDB/releases/tag/v4.20.0

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