CVE-2026-77060 PUBLISHED

Incorrect Permission Assignment for Critical Resource in boneIO

Assigner: CERT-PL
Reserved: 20.08.2026 Published: 26.10.2026 Updated: 26.10.2026

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.

Metrics

CVSS Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
CVSS Score: 6.8

Product Status

Vendor boneIO
Product black_debian_images
Versions Default: unaffected
  • affected from 1.2.0 to 1.6.0 (excl.)

Credits

  • Mateusz Włodarczak (s3ga) finder

References

Problem Types

  • CWE-732 Incorrect Permission Assignment for Critical Resource CWE