CVE-2023-6038

Local File Inclusion in h2oai/h2o-3

HIGH
7.5
CVSS Score
Published: November 16, 2023 at 04:06 PM UTC
Updated: June 17, 2026 at 06:49 AM UTC
2 products affected across 2 vendorsH2OH2O

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Severity
HIGH7.5
Exploit prediction
EPSS 4%
SSVC
PoC

Description

A Local File Inclusion (LFI) vulnerability exists in the h2o-3 REST API, allowing unauthenticated remote attackers to read arbitrary files on the server with the permissions of the user running the h2o-3 instance. This issue affects the default installation and does not require user interaction. The vulnerability can be exploited by making specific GET or POST requests to the ImportFiles and ParseSetup endpoints, respectively. This issue was identified in version 3.40.0.4 of h2o-3.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

All versions
v ≤ latest

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCPoCAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-862

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