CVE-2023-44385Public exploit

Arbitrary service invocation via unconfirmed URL actions

Published Oct 19, 2023 · Updated Sep 12, 2024

Client-side request forgery in Home Assistant Companion for iOS and macOS before 2023.7 allows attackers to invoke arbitrary services. Authenticated URL handlers process crafted call_service and render_template actions from universal links without confirming each action. A victim must open a malicious link or QR code; the app then uses the victim's existing session, enabling device actions, alarm disarming, server shutdown, or chained code execution.

CVSS severity8.6
High
EPSS probability0.28%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Client-side request forgery in Home Assistant Companion for iOS and macOS before 2023.7 allows attackers to invoke arbitrary services. Authenticated URL handlers process crafted call_service and render_template actions from universal links without confirming each action. A victim must open a malicious link or QR code; the app then uses the victim's existing session, enabling device actions, alarm disarming, server shutdown, or chained code execution.

The record

CVE
CVE-2023-44385
Published
Oct 19, 2023
Updated
Sep 12, 2024
Vendor
Home Assistant
Product
Home Assistant Core
Classifications
CWE-352, T1204.001
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 19, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 12, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 2023.7

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Home Assistant · Home Assistant Coreversion=< 2023.7

Published CVSS scores

8.6GitHubCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-352Cross-Site Request Forgery (CSRF)
T1204.001Malicious Link

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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