ESPHome Device Builder allows unauthenticated dashboard access via the HA add-on ingress site bound to all interfaces

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-59177
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-28 14:17:04 UTC
Updated2026-11-02 21:17:38 UTC
DescriptionESPHome Device Builder Dashboard is a dashboard for the ESPHome home management software. Prior to 1.0.10, the `Home Assistant` add-on's trusted `ingress` site binds to `0.0.0.0` while intentionally skipping dashboard authentication because the supervisor is expected to authenticate requests upstream. Host networking, required for mDNS, also binds this no-auth site to the `Home Assistant` host's LAN interface. Any device on that local network can therefore connect directly to the `ingress` port, bypass the supervisor, and obtain the full dashboard without credentials or operator misconfiguration. Dashboard capability includes compile-time Python execution through `external_components:`, shell execution through compile and validation subprocesses, and arbitrary access to configuration and data files, compromising the mounted `Home Assistant` configuration and managed ESPHome devices. The standalone Docker dashboard and the password-gated public port 6052 are not affected. This issue is fixed in version 1.0.10.

Risk And Classification

Primary CVSS: v3.1 8.8 HIGH from [email protected]

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.011680000 probability, percentile 0.674080000 (date 2026-11-03)

Problem Types: CWE-1327 | CWE-1327 CWE-1327: Binding to an Unrestricted IP Address

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary8.8HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1CNADECLARED8.8HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Esphome Device-builder affected < 1.0.10 Not specified

References

ReferenceSourceLinkTags
github.com/esphome/device-builder/releases/tag/1.0.10 [email protected] github.com
github.com/esphome/device-builder/pull/1565 [email protected] github.com
github.com/esphome/device-builder/commit/b6387db3f8bf1d3df5771f40e9856b9... [email protected] github.com
github.com/esphome/device-builder/security/advisories/GHSA-vv4j-m4vr-f3g6 [email protected] github.com
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