# CVE-2026-77061: boneIO Black authentication bypass on API endpoints

Source: https://junglewise.ai/threats/cve-2026-77061-boneio-black-directly-excludes-several-api-endpoints-from-the  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-26. Updated: 2026-10-26  
License: CC BY 4.0 with a link back

CVE-2026-77061 · Severity: info · Published 2026-10-26

boneIO Black is a DIN-rail home automation controller that manages electrical circuits and devices via a web-based control panel. Several API endpoints were accessible without authentication, allowing an attacker on the local network to retrieve sensitive system information including logs, firmware versions, and configuration details. This information disclosure aids in reconnaissance for follow-up attacks against the device.

Technologies: [boneIO Black](https://junglewise.ai/threats/technologies/boneio-black). Vendors: [boneIO](https://junglewise.ai/threats/vendors/boneio).

## Quick answers

**Is CVE-2026-77061 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-77061 being exploited in the wild.

**How severe is CVE-2026-77061?** Informational severity, published 26 October 2026.

**Which products and versions are affected?** boneIO Black before 1.6.0.

**Is there a fix for CVE-2026-77061?** Yes: fixed in 1.6.0. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-77061 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-77061?** Check whether you run boneIO Black at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- Fixed in 1.6.0

## Technical details

The vulnerability is an authentication bypass affecting multiple API endpoints that should require authenticated access. An unauthenticated attacker with network access to the device can call these endpoints to retrieve system logs, firmware version, serial number, MQTT credentials, configuration file listings, and API documentation. The fix in version 1.6.0 enforces authentication checks on all API routes, disables interactive API documentation, and restricts serial number disclosure to authenticated users.

## Affected products

- boneIO Black before 1.6.0

## Timeline

- 2026-10-26: disclosed

## References

- [https://pypi.python.org/](https://pypi.python.org/)
- [https://boneio.eu/en/docs/black](https://boneio.eu/en/docs/black)

## Related threats

- [boneIO Black web interface clickjacking vulnerability](https://junglewise.ai/threats/cve-2026-77062-the-boneio-black-web-interface-lacks-proper-clickjacking)
- [boneIO Black TOCTOU race condition in timezone_sudoers](https://junglewise.ai/threats/cve-2026-77059-boneio-black-contains-a-toctou-race-condition-in-the-create)
- [boneIO Black Cross-Site Request Forgery on state-changing API endpoints](https://junglewise.ai/threats/cve-2026-77058-boneio-black-is-vulnerable-to-cross-site-request-forgery-csrf-on)
- [boneIO Black brute-force attacks on web and SSH](https://junglewise.ai/threats/cve-2026-77057-boneio-black-does-not-limit-authentication-attempts-on-its-web)
- [boneIO Black cleartext password storage in config endpoint](https://junglewise.ai/threats/cve-2026-77054-boneio-black-stores-passwords-including-the-mqtt-broker-and-web)