---
id: "CVE-2026-82116"
kind: "vulnerability"
aliases: ["CVE-2026-82116"]
title: "HiRDB database server: missing authentication on a critical function"
severity: "critical"
cvss: 9.8
epss: null
exploited: false
status: "open"
category: "runtime"
products: []
ecosystems: []
tags: ["database", "hirdb", "hitachi", "runtime"]
not_affected_if: ["version-outside-listed-ranges"]
published_at: "2026-10-27T10:16:55+00:00"
first_seen_at: "2026-10-27T10:31:02+00:00"
updated_at: "2026-10-27T10:31:38+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-82116", "first_seen_at": "2026-10-27T10:31:02+00:00"}]
---

# HiRDB database server: missing authentication on a critical function

HiRDB, a Hitachi relational database server, lacks authentication on a critical function in several version ranges. An attacker who can reach the server can invoke that function without credentials.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the installed HiRDB version (Server Version 10 before `10-12-01`, Server Version 9 through `09-66-22`, or the 9(32) and Additional Function variants listed in the advisory)
- Confirm whether the HiRDB server port is reachable from untrusted networks

## Fix

- Upgrade HiRDB Server Version 10 to `10-12-01` or later
- Upgrade HiRDB Server Version 9 and the Additional Function variants to a release after `09-66-22` per the vendor advisory (unknown exact fixed build in the sources)

## Timeline

- 2026-10-27T10:31:02+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-82116

## From the sources

Missing Authentication for Critical Function Vulnerability in HiRDB.


This issue affects HiRDB Server Version 10: from 10-00 before 10-12-01; HiRDB Server Version 9: from 09-00 through 09-66-22; HiRDB Server with Additional Function Version 9: from 09-00 through 09-66/V; HiRDB Server Version 9(32): from 09-02 through 09-66-22; HiRDB Server with Additional Function Version 9(32): from 09-00 through 09-66-/V.

---

_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_