boneIO black_debian_images exposes MQTT password hashes to local users
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
boneIO black_debian_images stores the Mosquitto MQTT broker password file at /etc/mosquitto/passwd with world-readable permissions, affecting versions from 1.2.0 before 1.6.0. A local user with low privileges can read the password hashes for all MQTT accounts and attempt offline dictionary attacks against them (CWE-732).
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Description from the CNA
boneIO black_debian_images stores the Mosquitto MQTT broker password file at /etc/mosquitto/passwd with world-readable permissions. Any local user can read the password hashes for all MQTT accounts and perform offline dictionary attacks. This issue was fixed in version 1.6.0.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
Update boneIO black_debian_images to version 1.6.0 or later, which fixes the issue.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
- Fix · CNA black_debian_images (boneIO) Fixed in 1.6.0
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
boneIO black_debian_images 1.6.0
3 records Highest priority Priority MEDIUM 1 MEDIUM, 2 LOW
Other records, highest priority first
- TI-2026-80413 Excessive privileges in boneIO black_debian_images allow root escalationPriority MEDIUM 41
- TI-2026-80414 Default credentials in boneIO MQTT broker allow remote control of devicesPriority LOW 31
Timeline
- 2026-10-26 Threatist record created from CVE-2026-77060
- 2026-10-26 CISA SSVC decision points changed
- 2026-10-26 Priority changed: MEDIUM → LOW
- 2026-10-27 Alias added: GHSA-mpp4-mc8m-6vpc
References
More boneIO vulnerabilities
- TI-2026-80413 Excessive privileges in boneIO black_debian_images allow root escalation CVSS 4.0CRITICAL 9.3
- TI-2026-80410 Missing authentication for Node-RED in boneIO CVSS 4.0HIGH 8.7
- TI-2026-80417 Race condition in boneIO sudoers handling allows root privilege escalation CVSS 4.0HIGH 8.8
- TI-2026-80411 Missing authentication in boneIO firmware allows remote device control CVSS 4.0HIGH 8.7
- TI-2026-80420 Clickjacking in boneIO web interface allows unauthorized actions CVSS 4.0MEDIUM 6.9
- TI-2026-80414 Default credentials in boneIO MQTT broker allow remote control of devices CVSS 4.0HIGH 7.1
Sources
- CVE-2026-77060 · CVE Program
- CVE-2026-77060 · NVD
- FIRST EPSS
- GHSA-mpp4-mc8m-6vpc · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences