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TI-2026-80413 Aliases CVE-2026-77055GHSA-qc57-j976-j85m

Excessive privileges in boneIO black_debian_images allow root escalation

Priority MEDIUM 41CWE-266Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Privilege escalation
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-266.

Summary

boneIO black_debian_images gives the boneio service account excessive privileges, including passwordless sudo and membership in the docker group, from version 1.2.0 before 1.6.0. A local attacker who compromises the boneio user can use these privileges to escalate to root, a flaw class tracked as CWE-266.

Written with Claude Haiku 5.5 from the sources below · 2026-11-02

Description from the CNA

boneIO black_debian_images gives the boneio service account excessive privileges, including full passwordless sudo access and membership in the docker group. A local attacker who compromises the boneio user can use these privileges to escalate to root. This issue was fixed in version 1.6.0: the image removes the sudoers rule and the docker group membership when it is sealed, and devices already in the field have both removed by migrations shipped with boneio 1.6.0 and applied on first start after the upgrade. Privileged operations now go through helpers that accept only a fixed set of commands, with migrations verified against Ed25519 signatures.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00093 0th percentileScored 2026-11-07
Fix Fixed black_debian_images (boneIO): 1.6.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
boneIOblack_debian_images1.2.0 to before 1.6.01.6.0Patch availableCNA
  • black_debian_images VendorboneIO Affected 1.2.0 to before 1.6.0 Fixed in 1.6.0 Patch available CNA

Remediation

Upgrade black_debian_images to version 1.6.0. That release removes the sudoers rule and the docker group membership when the image is sealed, and migrations shipped with boneio 1.6.0 remove both on devices already in the field when they first start after the upgrade.

Written with Claude Haiku 5.5 from the sources below · 2026-11-02

  • 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-2026-80414 Default credentials in boneIO MQTT broker allow remote control of devicesPriority LOW 31
    • TI-2026-80418 boneIO black_debian_images exposes MQTT password hashes to local usersPriority LOW 29
    Show all 3 records →

Timeline

  1. 2026-10-26 Threatist record created from CVE-2026-77055
  2. 2026-10-27 Alias added: GHSA-qc57-j976-j85m
  3. 2026-10-27 Priority changed: MEDIUM → LOW
  4. 2026-11-02 CISA SSVC decision points changed
  5. 2026-11-02 Priority changed: LOW → MEDIUM

References

Advisory 1

Other 1

  • 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
  • TI-2026-80418 boneIO black_debian_images exposes MQTT password hashes to local users CVSS 4.0MEDIUM 6.8
See all 10 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences