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FalkorDB EUVDEUVD-2026-84188

| CVE-2026-88410 HIGH
Missing Authentication for Critical Function (CWE-306)
2026-09-21 cve@mitre.org GHSA-jfwr-q2jc-29xf
7.1
CVSS 3.1 · Vendor: mitre
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Severity by source

Vendor (mitre) PRIMARY
7.1 HIGH
AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
vuln.today AI
7.1 HIGH

Network-reachable command interface (AV:N/AC:L), but issuing module commands requires authorization (PR:L); no data disclosure (C:N), limited integrity from mis-propagated writes (I:L), and service/replication disruption (A:H).

3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (mitre).

CVSS VectorVendor: mitre

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
High

Lifecycle Timeline

4
Metadata Corrected
Sep 21, 2026 - 21:40 vuln.today
tag: Falkordb added
Metadata Corrected
Sep 21, 2026 - 21:40 vuln.today
tag: Information Disclosure removed
Analysis Generated
Sep 21, 2026 - 21:35 vuln.today
CVE Published
Sep 21, 2026 - 21:17 cve.org
HIGH 7.1

DescriptionCVE.org

The graph.UDF in FalkorDB (Redis module) v4.20.1 to v4.20.4 is not registered as a write command, leading to unexpected behavior within the application.

AnalysisAI

Missing write-command registration for graph.UDF in the FalkorDB Redis module versions 4.20.1 through 4.20.4 allows a client that is already authenticated and authorized to issue module commands (CVSS PR:L, unauthenticated external attackers are not sufficient) to invoke a command that Redis does not treat as a write, producing incorrect behavior in deployments whose correctness depends on write-command semantics such as replication propagation, persistence, and replica handling. The assessed impact is primarily availability (A:H) with a minor integrity effect (I:L) and explicitly no confidentiality impact (C:N), giving a CVSS of 7.1; no public exploit code and no confirmed active exploitation (CISA KEV) were identified at time of analysis, and the exposed version range is narrow. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
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Delivery
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Exploit
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Execution
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Impact
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Vulnerability AssessmentAI

Exploitation Requires the ability to send graph.UDF commands to a FalkorDB (Redis module) instance on versions v4.20.1 through v4.20.4; the CVSS PR:L indicates a client authenticated/authorized to issue module commands. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The vendor CVSS of 7.1 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H) is driven almost entirely by the A:H availability impact plus a modest I:L, with explicitly no confidentiality impact (C:N) - which directly contradicts the 'Information Disclosure' tag applied to this record. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation No vendor-released patch version is identified in the available intelligence, and the single reference supplied (the upstream GitHub issue at https://github.com/FalkorDB/FalkorDB/issues/2401) is not a fix; absence of a published patch is not confirmation that none exists, so confirm current status with the vendor and monitor that issue for a fixed FalkorDB release before upgrading beyond 4.20.4. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours, confirm whether any FalkorDB Redis module instances are running versions 4.20.1 through 4.20.4, and restrict module command permissions (e.g., graph.UDF) to only trusted authenticated users, disabling the command where feasible via Redis ACLs or module configuration. …

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EUVD-2026-84188 vulnerability details – vuln.today

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