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Home Assistant CVE-2023-41897

CRITICAL
Improper Restriction of Rendered UI Layers or Frames (CWE-1021)
2023-10-19 security-advisories@github.com
9.6
CVSS 3.1 · NVD
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Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A06:2025 - Insecure Design
ASVS 5.0
V3 - Web Frontend Security Clickjacking prevention, X-Frame-Options
Impact

CVSS score of 9.6 (CRITICAL). Attack characteristics: network attack vector, low complexity, no privileges required, user interaction required.

Exploit ScenarioDerived

This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the critical-severity affected system.

Act Now Prioritize within 24-48h. Why: CRITICAL severity.
No patch listed yet 0.9% exploitation probability (EPSS)

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AnalysisAI

Home assistant is an open source home automation. Rated critical severity (CVSS 9.6), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affects your stack

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Technical ContextAI · show details

This vulnerability is classified under CWE-1021. Home assistant is an open source home automation. Home Assistant server does not set any HTTP security headers, including the X-Frame-Options header, which specifies whether the web page is allowed to be framed. The omission of this and correlating headers facilitates covert clickjacking attacks and alternative exploit opportunities, such as the vector described in this security advisory. This fault incurs major risk, considering the ability to trick users into installing an external and malicious add-on with minimal user interaction, which would enable Remote Code Execution (RCE) within the Home Assistant application. This issue has been addressed in version 2023.9.0 and all users are advised to upgrade. There are no known workarounds for this vulnerability. Affected products include: Home-Assistant. Version information: version 2023.9.0.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 9.6 CRITICAL
AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

DescriptionNVD

Home assistant is an open source home automation. Home Assistant server does not set any HTTP security headers, including the X-Frame-Options header, which specifies whether the web page is allowed to be framed. The omission of this and correlating headers facilitates covert clickjacking attacks and alternative exploit opportunities, such as the vector described in this security advisory. This fault incurs major risk, considering the ability to trick users into installing an external and malicious add-on with minimal user interaction, which would enable Remote Code Execution (RCE) within the Home Assistant application. This issue has been addressed in version 2023.9.0 and all users are advised to upgrade. There are no known workarounds for this vulnerability.

Threat Intelligence Overview

EPSS Score
0.9%
Top 43% exploitable
Data Quality
3 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity CRITICAL
CISA KEV No
Public POC No
EPSS 0.9%
Patch available No
Active threat No
Deciding rule
CRITICAL severity
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

49
Low Medium High Critical
KEV: 0
EPSS: +1
CVSS: +48
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Cross-Site Scripting occurs when an application accepts untrusted data and sends it to a web browser without proper validation or encoding.

Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.

Affected Products (CPE)NVD

cpe:2.3:a:home-assistant:home-assistant:*:*:*:*:*:*:*:*
CVE-2023-27482 CRITICAL POC
10.0 Mar 08

homeassistant is an open source home automation tool. Rated critical severity (CVSS 10.0), this vulnerability is remotel

CVE-2026-91130 CRITICAL POC
9.3 Sep 22

Stored/DOM cross-site scripting in the Home Assistant frontend Statistics Graph card lets an authenticated user or a mal

CVE-2021-47942 HIGH POC
8.7 May 16

Home Assistant Community Store (HACS) 1.10.0 contains a path traversal vulnerability that allows unauthenticated attacke

CVE-2023-41895 CRITICAL
9.6 Oct 19

Home assistant is an open source home automation. Rated critical severity (CVSS 9.6), this vulnerability is remotely exp

CVE-2026-64824 CRITICAL
9.3 Jul 21

Path-traversal to remote code execution in Home Assistant Core before 2026.6.0 lets an authenticated user who can supply

CVE-2021-3152 MEDIUM POC
5.3 Jan 26

Home Assistant before 2021.1.3 does not have a protection layer that can help to prevent directory-traversal attacks aga

CVE-2026-64825 CRITICAL
9.0 Jul 21

Arbitrary file write in Home Assistant Core before 2026.6.0 lets unauthenticated attackers plant attacker-controlled fil

CVE-2023-41896 CRITICAL
9.0 Oct 19

Home assistant is an open source home automation. Rated critical severity (CVSS 9.0), this vulnerability is remotely exp

CVE-2023-44385 HIGH
8.8 Oct 19

The Home Assistant Companion for iOS and macOS app up to version 2023.4 are vulnerable to Client-Side Request Forgery. R

CVE-2025-62172 HIGH
8.5 Oct 14

Stored cross-site scripting in the Home Assistant Energy dashboard (versions 2025.1.0 through 2025.10.1) lets an authent

CVE-2026-44698 HIGH
8.3 May 29

Cross-origin JavaScript injection in Home Assistant Companion apps for Android (before 2026.4.4) and iOS (before 2026.4.

CVE-2023-50715 MEDIUM POC
4.3 Dec 15

Home Assistant is open source home automation software. Rated medium severity (CVSS 4.3), this vulnerability is no authe

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