Nornicdb: Improper Network Binding in NornicDB Bolt Server allows unauthorized remote access

CISA KEV is observed exploitation evidence. FIRST EPSS is a dated prediction of exploitation in the next 30 days. Missing scores are unknown. This collector requests predictions only for explicit CVE aliases in the public NuGet archive; Microsoft release views retain their existing prediction scope.

No collected risk observation for these identifiers. This does not establish absence of exploitation or a zero probability.

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 NORNICDB_ADDRESS / 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.

Source published

8 May 2026 15:59:42 UTC

Source modified

12 May 2026 02:04:18 UTC

Observed here

23 Oct 2026 15:48:27 UTC

Source terms

CVE Program Terms of Use

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This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: cve-program · CVE Program Terms of Use. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS 3.1 · 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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 NORNICDB_ADDRESS / 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.

Source published

May 8, 2026, 3:59:42 PM (timezone not stated)

Source modified

May 12, 2026, 2:04:18 AM (timezone not stated)

Observed here

7 Nov 2026 09:31:57 UTC

Source terms

ENISA EUVD · source terms and attribution apply

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This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: euvd · ENISA EUVD · source terms and attribution apply. Source text is retained; field grouping and change labels are provided by ChangeIntel.

EUVD CVSS 3.1 · 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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 NORNICDB_ADDRESS / 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.

Source published

8 May 2026 17:16:31 UTC

Source modified

26 Oct 2026 18:10:00 UTC

Observed here

27 Oct 2026 11:12:01 UTC

Source terms

NIST NVD usage terms; underlying source attribution retained

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: nvd · NIST NVD usage terms; underlying source attribution retained. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS 3.1 · [email protected] · Secondary · 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

## Summary The `--address` CLI flag (and `NORNICDB_ADDRESS` / `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. ## Version - `nornicdb v1.0.39` - Built from commit `afe7c9d` on `main` - Platform: macOS (darwin 25.4.0, arm64) ## Reproduction ``` $ nornicdb serve --address 127.0.0.1 --bolt-port 7687 --http-port 7474 ... ``` Output claims Bolt is on localhost: ``` Bolt server listening on bolt://localhost:7687 ``` But the actual socket: ``` $ netstat -an -p tcp | grep 7687 tcp46 0 0 *.7687 *.* LISTEN $ lsof -iTCP:7687 -sTCP:LISTEN -n -P nornicdb ... IPv6 ... TCP *:7687 (LISTEN) ``` HTTP port is correctly bound: ``` tcp4 127.0.0.1.7474 *.* LISTEN ``` Reachable from another host on the LAN: ``` $ nc -z 192.168.x.y 7687 Connection to 192.168.x.y port 7687 [tcp/*] succeeded! ``` Setting `NORNICDB_BOLT_ADDRESS=127.0.0.1` or `server.host: "127.0.0.1"` in `config.yaml` has **no effect** on the Bolt listener. ## Root Cause In `pkg/bolt/server.go:774-776`: ```go func (s *Server) ListenAndServe() error { addr := fmt.Sprintf(":%d", s.config.Port) listener, err := net.Listen("tcp", addr) ... } ``` `bolt.Config` (line 474) has no `Host`/`Address`/`Addr` field — only `Port`. The CLI flag `--address` is stored in a local variable in `cmd/nornicdb/main.go:80` and used to format user-facing log output (line 637–644), but is never copied into `boltConfig` at line 600–609 when Bolt is initialized. Since `ListenAndServe` calls `net.Listen("tcp", ":7687")` with an empty host, Go binds the wildcard socket on all interfaces. ## Suggested Fix 1. Add a `Host string` field to `bolt.Config` (default `"127.0.0.1"`, matching the CLI flag default). 2. In `cmd/nornicdb/main.go` around line 601, wire it through: ```go boltConfig.Host = address boltConfig.Port = boltPort ``` 3. In `pkg/bolt/server.go:775`, use the host: ```go addr := net.JoinHostPort(s.config.Host, strconv.Itoa(s.config.Port)) ``` ## Security Impact - Default `admin:password` credentials + wildcard binding = anyone on the same WiFi can issue arbitrary Cypher queries (read, write, delete nodes) against NornicDB instances running with default setup. - Users following the README will reasonably assume `--address 127.0.0.1` (the documented default) binds *both* protocols to localhost. - Workaround: host-firewall rules (e.g. macOS `pf`) blocking non-loopback → 7687. Not discoverable from the docs.

Source published

22 Apr 2026 22:03:43 UTC

Source modified

20 May 2026 19:41:02 UTC

Observed here

24 Oct 2026 13:19:41 UTC

Source terms

GitHub Advisory Database · CC-BY-4.0

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This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: osv · GitHub Advisory Database · CC-BY-4.0. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS_V3 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Publisher rating · CRITICAL

NornicDB has Improper Network Binding in its Bolt Server, allowing unauthorized remote access in github.com/orneryd/nornicdb

Source published

20 May 2026 19:07:16 UTC

Source modified

20 May 2026 19:30:12 UTC

Observed here

24 Oct 2026 13:19:41 UTC

Source terms

OSV · upstream source license applies

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: osv · OSV · upstream source license applies. Source text is retained; field grouping and change labels are provided by ChangeIntel.