High
Home Assistant has stored XSS in Map-card through malicious device name
Type: advisorySources: OSV
Home Assistant is open source home automation software that puts local control and privacy first. Starting in version 2020.02 and prior to version 2026.01, an authenticated party can add a malicious name to their device entity, allowing for Cross-Site Scripting attacks against anyone who can see a dashboard with a Map-card which includes that entity. It requires that the victim hovers over an information point. Version 2026.01 fixes the issue.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-33044
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 5 Nov 2026, 04:07 UTC · Revision 1
Source evidence
Home Assistant has stored XSS in Map-card through malicious device name
core-osv · Original sourcePublished 27 Mar 2026, 19:35 UTC
Home Assistant is open source home automation software that puts local control and privacy first. Starting in version 2020.02 and prior to version 2026.01, an authenticated party can add a malicious name to their device entity, allowing for Cross-Site Scripting attacks against anyone who can see a dashboard with a Map-card which includes that entity. It requires that the victim hovers over an information point. Version 2026.01 fixes the issue.
osv:CVE-2026-33044
Complete source record
{
"id": "8c7c3f6b098a179654a3086336be1d91f1e9a6bba42171e4e1e2d3b8a7d5c276",
"url": "https://osv.dev/vulnerability/CVE-2026-33044",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Home Assistant has stored XSS in Map-card through malicious device name",
"summary": "Home Assistant is open source home automation software that puts local control and privacy first. Starting in version 2020.02 and prior to version 2026.01, an authenticated party can add a malicious name to their device entity, allowing for Cross-Site Scripting attacks against anyone who can see a dashboard with a Map-card which includes that entity. It requires that the victim hovers over an information point. Version 2026.01 fixes the issue.",
"evidence": "osv:CVE-2026-33044",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2026-33044",
"aliases": [
"CVE-2026-33044",
"GHSA-r584-6283-p7xc",
"PYSEC-2026-2517"
],
"metrics": [
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/home-assistant/core",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "49086b2a765b0d7662d46f41bb5ca68de47134c7"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:home-assistant:home-assistant:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2020.02"
},
{
"fixed": "2026.1.0"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"versions": [
"2025.12.5",
"2025.12.4",
"2025.12.3",
"2025.12.2",
"2025.12.1",
"2025.12.0",
"2025.11.3",
"2025.11.2",
"2025.11.1",
"2025.11.0",
"2025.10.4",
"2025.10.3",
"2025.10.2",
"2025.10.1",
"2025.10.0",
"2025.9.4",
"2025.9.3",
"2025.9.2",
"2025.9.1",
"2025.9.0",
"2025.8.3",
"2025.8.2",
"2025.8.1",
"2025.8.0",
"2025.7.4",
"2025.7.3",
"2025.7.2",
"2025.7.1",
"2025.7.0",
"2025.6.3",
"2025.6.2",
"2025.6.1",
"2025.6.0",
"2025.5.3",
"2025.5.2",
"2025.5.1",
"2025.5.0",
"2025.4.4",
"2025.4.3",
"2025.4.2",
"2025.4.1",
"2025.4.0",
"2025.3.4",
"2025.3.3",
"2025.3.2",
"2025.3.1",
"2025.3.0",
"2025.2.5",
"2025.2.4",
"2025.2.3",
"2025.2.2",
"2025.2.1",
"2025.2.0",
"2025.1.4",
"2025.1.3",
"2025.1.2",
"2025.1.1",
"2025.1.0",
"2024.12.5",
"2024.12.4",
"2024.12.3",
"2024.12.2",
"2024.12.1",
"2024.12.0",
"2024.11.3",
"2024.11.2",
"2024.11.1",
"2024.11.0",
"2024.10.3",
"2024.10.2",
"2024.10.1",
"2024.10.0",
"2024.9.3",
"2024.9.2",
"2024.9.1",
"2024.9.0",
"2024.8.3",
"2024.8.2",
"2024.8.1",
"2024.8.0",
"2024.7.4",
"2024.7.3",
"2024.7.2",
"2024.7.1",
"2024.7.0",
"2024.6.4",
"2024.6.3",
"2024.6.2",
"2024.6.1",
"2024.6.0",
"2024.5.5",
"2024.5.4",
"2024.5.3",
"2024.5.2",
"2024.5.1",
"2024.5.0",
"2024.4.4",
"2024.4.3",
"2024.4.2",
"2024.4.1",
"2024.4.0",
"2024.3.3",
"2024.3.2",
"2024.3.1",
"2024.3.0",
"2024.2.5",
"2024.2.4",
"2024.2.3",
"2024.2.2",
"2024.2.1",
"2024.2.0",
"2024.1.6",
"2024.1.5",
"2024.1.4",
"2024.1.3",
"2024.1.2",
"2024.1.1",
"2024.1.0",
"2023.12.4",
"2023.12.3",
"2023.12.2",
"2023.12.1",
"2023.12.0",
"2023.11.3",
"2023.11.2",
"2023.11.1",
"2023.11.0",
"2023.10.5",
"2023.10.4",
"2023.10.3",
"2023.10.2",
"2023.10.1",
"2023.10.0",
"2023.9.3",
"2023.9.2",
"2023.9.1",
"2023.9.0",
"2023.8.4",
"2023.8.3",
"2023.8.2",
"2023.8.1",
"2023.8.0",
"2023.7.3",
"2023.7.2",
"2023.7.1",
"2023.7.0",
"2023.6.3",
"2023.6.2",
"2023.6.1",
"2023.6.0",
"2023.5.4",
"2023.5.3",
"2023.5.2",
"2023.5.1",
"2023.5.0",
"2023.4.6",
"2023.4.5",
"2023.4.4",
"2023.4.3",
"2023.4.2",
"2023.4.1",
"2023.4.0",
"2023.3.6",
"2023.3.5",
"2023.3.4",
"2023.3.3",
"2023.3.2",
"2023.3.1",
"2023.3.0",
"2023.2.5",
"2023.2.4",
"2023.2.3",
"2023.2.2",
"2023.2.1",
"2023.2.0",
"2023.1.7",
"2023.1.6",
"2023.1.5",
"2023.1.4",
"2023.1.3",
"2023.1.2",
"2023.1.1",
"2023.1.0",
"2022.12.9",
"2022.12.8",
"2022.12.7",
"2022.12.6",
"2022.12.5",
"2022.12.4",
"2022.12.3",
"2022.12.2",
"2022.12.1",
"2022.12.0",
"2022.11.5",
"2022.11.4",
"2022.11.3",
"2022.11.2",
"2022.11.1",
"2022.11.0",
"2022.10.5",
"2022.10.4",
"2022.10.3",
"2022.10.2",
"2022.10.1",
"2022.10.0",
"2022.9.7",
"2022.9.6",
"2022.9.5",
"2022.9.4",
"2022.9.3",
"2022.9.2",
"2022.9.1",
"2022.9.0",
"2022.8.7",
"2022.8.6",
"2022.8.5",
"2022.8.4",
"2022.8.3",
"2022.8.2",
"2022.8.1",
"2022.8.0",
"2022.7.7",
"2022.7.6",
"2022.7.5",
"2022.7.4",
"2022.7.3",
"2022.7.2",
"2022.7.1",
"2022.7.0",
"2022.6.7",
"2022.6.6",
"2022.6.5",
"2022.6.4",
"2022.6.3",
"2022.6.2",
"2022.6.1",
"2022.6.0",
"2022.5.5",
"2022.5.4",
"2022.5.3",
"2022.5.2",
"2022.5.1",
"2022.5.0",
"2022.4.7",
"2022.4.6",
"2022.4.5",
"2022.4.4",
"2022.4.3",
"2022.4.2",
"2022.4.1",
"2022.4.0",
"2022.3.8",
"2022.3.7",
"2022.3.6",
"2022.3.5",
"2022.3.4",
"2022.3.3",
"2022.3.2",
"2022.3.1",
"2022.3.0",
"2022.2.9",
"2022.2.8",
"2022.2.7",
"2022.2.6",
"2022.2.5",
"2022.2.4",
"2022.2.3",
"2022.2.2",
"2022.2.1",
"2022.2.0",
"2021.12.10",
"2021.12.9",
"2021.12.8",
"2021.12.7",
"2021.12.6",
"2021.12.5",
"2021.12.4",
"2021.12.3",
"2021.12.2",
"2021.12.1",
"2021.12.0",
"2021.11.5",
"2021.11.4",
"2021.11.3",
"2021.11.2",
"2021.11.1",
"2021.11.0",
"2021.10.7",
"2021.10.6",
"2021.10.5",
"2021.10.4",
"2021.10.3",
"2021.10.2",
"2021.10.1",
"2021.10.0",
"2021.9.7",
"2021.9.6",
"2021.9.5",
"2021.9.4",
"2021.9.3",
"2021.9.2",
"2021.9.1",
"2021.9.0",
"2021.8.8",
"2021.8.7",
"2021.8.6",
"2021.8.5",
"2021.8.4",
"2021.8.3",
"2021.8.2",
"2021.8.1",
"2021.8.0",
"2021.7.4",
"2021.7.3",
"2021.7.2",
"2021.7.1",
"2021.7.0",
"2021.6.6",
"2021.6.5",
"2021.6.4",
"2021.6.3",
"2021.6.2",
"2021.6.1",
"2021.6.0",
"2021.5.5",
"2021.5.4",
"2021.5.3",
"2021.5.2",
"2021.5.1",
"2021.5.0",
"2021.4.6",
"2021.4.5",
"2021.4.4",
"2021.4.3",
"2021.4.2",
"2021.4.1",
"2021.4.0",
"2021.3.4",
"2021.3.3",
"2021.3.2",
"2021.3.1",
"2021.3.0",
"2021.2.3",
"2021.2.2",
"2021.2.1",
"2021.2.0",
"2021.1.5",
"2021.1.4",
"2021.1.3",
"2021.1.2",
"2021.1.1",
"2021.1.0",
"2020.12.2",
"2020.12.1",
"2020.12.0",
"0.118.5",
"0.118.4",
"0.118.3",
"0.118.2",
"0.118.1",
"0.118.0",
"0.117.6",
"0.117.5",
"0.117.4",
"0.117.3",
"0.117.2",
"0.117.1",
"0.117.0",
"0.116.4",
"0.116.3",
"0.116.2",
"0.116.1",
"0.116.0",
"0.115.6",
"0.115.5",
"0.115.4",
"0.115.3",
"0.115.2",
"0.115.1",
"0.115.0",
"0.114.4",
"0.114.3",
"0.114.2",
"0.114.1",
"0.114.0",
"0.113.3",
"0.113.2",
"0.113.1",
"0.113.0",
"0.112.5",
"0.112.4",
"0.112.3",
"0.112.2",
"0.112.1",
"0.112.0",
"0.111.4",
"0.111.3",
"0.111.2",
"0.111.1",
"0.111.0",
"0.110.7",
"0.110.6",
"0.110.5",
"0.110.4",
"0.110.3",
"0.110.2",
"0.110.1",
"0.110.0",
"0.109.6",
"0.109.5",
"0.109.4",
"0.109.3",
"0.109.2",
"0.109.1",
"0.109.0",
"0.108.9",
"0.108.8",
"0.108.7",
"0.108.6",
"0.108.5",
"0.108.4",
"0.108.3",
"0.108.2",
"0.108.1",
"0.108.0",
"0.107.7",
"0.107.6",
"0.107.5",
"0.107.4",
"0.107.3",
"0.107.2",
"0.107.1",
"0.107.0",
"0.106.6",
"0.106.5",
"0.106.4",
"0.106.3",
"0.106.2",
"0.106.1",
"0.106.0",
"0.105.5",
"0.105.4",
"0.105.3",
"0.105.2",
"0.105.1",
"0.105.0",
"0.104.3",
"0.104.2",
"0.104.1",
"0.104.0",
"0.103.6",
"0.103.5",
"0.103.4",
"0.103.3",
"0.103.2",
"0.103.1",
"0.103.0",
"0.103.0b1",
"0.103.0b0",
"0.81.1",
"0.28",
"0.7.6",
"Last-Python2-release"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-33044.json"
}
}
],
"modified": "2026-10-28T02:30:42.268710300Z",
"provider": "osv",
"references": [
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33044.json",
"https://github.com/home-assistant/core/security/advisories/GHSA-r584-6283-p7xc",
"https://nvd.nist.gov/vuln/detail/CVE-2026-33044"
],
"provider_metadata": {
"cwe_ids": [
"CWE-79"
],
"cna_assigner": "GitHub_M",
"unresolved_ranges": [
{
"extracted_events": [
{
"range": [
{
"introduced": "2020.02"
},
{
"fixed": "2026.01"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StringRangeExpression"
}
]
},
{
"extracted_events": [
{
"range": [
{
"fixed": "2026.01"
},
{
"last_affected": "2020.02"
}
],
"source": "DESCRIPTION"
}
]
}
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33044.json"
}
},
"related_cves": [
{
"value": "CVE-2026-33044",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 510129,
"published_at": "2026-03-27T19:35:45.728+00:00"
}