{"id":"CVE-2026-77061","kind":"vulnerability","aliases":["CVE-2026-77061"],"related":[],"title":"boneIO Black: unauthenticated API leaks logs, firmware and MQTT username","description":"boneIO Black directly excludes several API endpoints from the authentication. An unauthenticated remote attacker on the local network can retrieve system logs, firmware version, serial number, MQTT username, configuration file listings, and API documentation. This data aids reconnaissance and enables targeted attacks against the device.\nThis issue was fixed in version 1.6.0: every API route requires an authenticated role, the interactive API documentation is disabled, and the serial number is withheld from anonymous callers.","summary":"boneIO Black exposes several API endpoints without authentication. A remote attacker on the local network can read system logs, firmware version, serial number, MQTT username, configuration file listings and API docs, which helps plan targeted attacks against the device.","severity":"medium","cvss":5.3,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["boneio","home-automation","infrastructure","iot","mqtt","self-hosted"],"not_affected_if":["firmware-1.6.0-or-later","isolated-network"],"how_to_check":"- Check the boneIO Black firmware version on the device; versions before `1.6.0` are affected.\n- From the local network, request an API route without credentials and see whether logs or the MQTT username are returned (unknown exact paths).","fix":"- Upgrade boneIO Black to `1.6.0` or later, which requires authentication on every API route and disables the interactive API docs.\n- Rotate the MQTT password if the username was exposed to untrusted hosts (unknown whether the sources require this).","status":"open","published_at":"2026-10-26T15:16:44+00:00","first_seen_at":"2026-10-26T16:02:26+00:00","triaged_at":"2026-10-26T16:03:54+00:00","updated_at":"2026-10-26T16:03:54+00:00","category":"infrastructure","confidence":0.7,"triage":{"at":"2026-10-26T16:03:54Z","model":"claude-haiku-5-5","output":{"fix":"- Upgrade boneIO Black to `1.6.0` or later, which requires authentication on every API route and disables the interactive API docs.\n- Rotate the MQTT password if the username was exposed to untrusted hosts (unknown whether the sources require this).","reach":"network","title":"boneIO Black: unauthenticated API leaks logs, firmware and MQTT username","impact":"low","summary":"boneIO Black exposes several API endpoints without authentication. A remote attacker on the local network can read system logs, firmware version, serial number, MQTT username, configuration file listings and API docs, which helps plan targeted attacks against the device.","category":"infrastructure","nicknames":[],"who_cares":["boneIO","home-automation","mqtt","self-hosted","iot"],"confidence":0.7,"needs_auth":"no","worst_case":"Attacker reads logs and MQTT username for targeted follow-up attacks","analyst_note":"","how_to_check":"- Check the boneIO Black firmware version on the device; versions before `1.6.0` are affected.\n- From the local network, request an API route without credentials and see whether logs or the MQTT username are returned (unknown exact paths).","needs_analyst":false,"not_affected_if":["firmware-1.6.0-or-later","isolated-network"],"who_is_affected":"Owners of boneIO Black devices on a network where untrusted hosts can reach the device's API. The sources do not name a specific configuration that is required, so any reachable boneIO Black below 1.6.0 should be treated as affected. Devices isolated from the local network are less exposed.","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"medium"},"cost_usd":0.000627,"input_tokens":3360,"output_tokens":582,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-2026':12A,15A '-77061':13A,16A '1.6.0':117C 'aid':102C 'anonym':138C 'api':4A,31B,56B,71C,98C,119C,127C 'attack':37B,62B,79C,107C 'authent':34B,75C,123C 'autom':20B 'black':2A,28B,67C 'boneio':1A,17B,27B,66C 'caller':139C 'configur':52B,94C 'cve':11A,14A 'data':101C 'devic':65B,110C 'direct':68C 'disabl':130C 'doc':57B 'document':99C,128C 'enabl':105C 'endpoint':32B,72C 'everi':118C 'exclud':69C 'expos':29B 'file':53B,95C 'firmwar':7A,46B,88C 'fix':114C 'help':59B 'home':19B 'home-autom':18B 'host':26B 'infrastructur':21B 'interact':126C 'iot':22B 'issu':112C 'leak':5A 'list':54B,96C 'local':40B,82C 'log':6A,45B,87C 'mqtt':9A,23B,50B,92C 'network':41B,83C 'number':49B,91C,134C 'plan':60B 'read':43B 'reconnaiss':103C 'remot':36B,78C 'requir':121C 'retriev':85C 'role':124C 'rout':120C 'self':25B 'self-host':24B 'serial':48B,90C,133C 'sever':30B,70C 'system':44B,86C 'target':61B,106C 'unauthent':3A,77C 'usernam':10A,51B,93C 'version':47B,89C,116C 'withheld':136C 'without':33B","nicknames":[],"mitigations":[],"who_affected":"Owners of boneIO Black devices on a network where untrusted hosts can reach the device's API. The sources do not name a specific configuration that is required, so any reachable boneIO Black below 1.6.0 should be treated as affected. Devices isolated from the local network are less exposed.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-26T15:16:44+00:00","kev":null,"cvss_vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","cvss_by":"cvd@cert.pl","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-77061","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-77061","severity":null,"published_at":"2026-10-26T15:16:44+00:00","modified_at":"2026-10-26T15:16:44+00:00","first_seen_at":"2026-10-26T16:02:26+00:00","fetched_at":"2026-10-26T16:02:26+00:00","note":null}],"documents":[],"notice":"Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai"}