---
title: "CVE-2026-42072: NornicDB has Improper Network Binding in its Bolt Server, allowing unauthorized remote access"
url: https://erroneo.us/security/cve/CVE-2026-42072/
description: "CVE-2026-42072 (github.com/orneryd/nornicdb (Go)): Nornicdb is a distributed low-latency, Graph+Vector, Temporal MVCC with all sub-ms HNSW search, graph…"
type: vulnerability-record
section: "Security Digest"
date_published: 2026-05-08
date_modified: 2026-05-13
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2026-42072"
kev: false
cvss: 9.8
epss: 0.00601
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2026-42072: NornicDB has Improper Network Binding in its Bolt Server, allowing unauthorized remote access

**Signal:** Critical and remotely reachable. No known exploitation yet, but it is network-reachable without credentials. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- No confirmed exploitation. It is not in CISA’s KEV catalog and CISA’s SSVC assessment records no known exploitation. That can change quickly after a public write-up; re-check if you are affected.
- EPSS 0.6% , percentile 48: FIRST’s model estimates a 0.6% chance of exploitation activity in the next 30 days, higher than 48% of all scored CVEs (low). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
- Only applies if your dependency tree includes github.com/orneryd/nornicdb (Go) < 1.0.42-hotfix, fixed in 1.0.42-hotfix . Check your lockfile, including transitive dependencies.

## What it is

Nornicdb is a distributed low-latency, Graph+Vector, Temporal MVCC with all sub-ms HNSW search, graph traversal, and writes. Prior to version 1.0.42-hotfix, the --address CLI flag (and NORNICDBADDRESS / server.host config key) is plumbed through to the HTTP server correctly but never reaches the Bolt server config. The Bolt listener therefore always binds to the wildcard address (all interfaces), regardless of what the user configures. On a LAN, this exposes the graph database — with its default admin:password credentials — to any device sharing the network. This issue has been patched in version 1.0.42-hotfix.

## Affected packages

- Go `github.com/orneryd/nornicdb` < 1.0.42-hotfix → fixed: 1.0.42-hotfix

## Affected products (CVE record)

- orneryd NornicDB: < 1.0.42-hotfix

## Severity

- GitHub_M CVSS 3.1: 9.8 `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`
- GitHub CVSS 3.1: 9.8 `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`

## Exploitation

- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation none , automatable yes , technical impact total .
- FIRST EPSS (model of 2026-10-21): 0.60% probability of exploitation activity in the next 30 days; percentile 48.

## Sources

- [GitHub Advisory GHSA-2hp7-65r3-wv54](https://github.com/advisories/GHSA-2hp7-65r3-wv54)
- [CVE.org record CVE-2026-42072](https://www.cve.org/CVERecord?id=CVE-2026-42072)
- [NVD entry CVE-2026-42072](https://nvd.nist.gov/vuln/detail/CVE-2026-42072)
- [github.com](https://github.com/orneryd/NornicDB/security/advisories/GHSA-2hp7-65r3-wv54)
- [github.com](https://github.com/orneryd/NornicDB/commit/adce4f9a9fc7b6aada07c0bfa2d737cd7a6efaca)
- [github.com](https://github.com/orneryd/NornicDB/releases/tag/v1.0.42)
- [github.com](https://github.com/orneryd/NornicDB/releases/tag/v1.0.42-hotfix)

---
Source page: https://erroneo.us/security/cve/CVE-2026-42072/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt