CVE-2026-64823

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2026-64823
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-64823.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-64823
Published
2026-07-21T15:16:03Z
Modified
2026-10-28T02:30:38Z
Severity
  • 2.1 (Low) CVSS_V4 - CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N CVSS Calculator
Summary
Home Assistant Core < 2026.5.4 XSS via Shelly media_player.py thumb URI
Details

Home Assistant Core before 2026.5.4 contains a cross-site scripting vulnerability in the Shelly integration's async_get_media_image() method that allows attackers controlling a Shelly device's thumb field to serve arbitrary HTML content by supplying a data URI with a text/html content type without validation against an image-only allowlist. Attackers can cause the media player proxy endpoint to serve attacker-controlled bytes with Content-Type text/html in the Home Assistant web origin, enabling theft of session tokens from local storage and authenticated calls to sensitive service endpoints including lock, alarm, and cover controls.

Database specific 
{
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
        "CWE-79"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64823.json"
}
References

Affected packages

Git / github.com/home-assistant/core

Affected ranges

Type
GIT
Repo
https://github.com/home-assistant/core
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
0723d8d83ff121e732e76b5dffe1b6648c69d596
Fixed
894a68acb678afc382fe5ea9002e61ab7f862011
Database specific
Show details 
{
    "extracted_events": [
        {
            "range": [
                {
                    "introduced": "0"
                },
                {
                    "fixed": "2026.5.4"
                }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StandardRange"
        },
        {
            "original_tag": "2026.5.4",
            "range": [
                {
                    "fixed": "0723d8d83ff121e732e76b5dffe1b6648c69d596"
                }
            ],
            "source": "REFERENCES_TAG"
        },
        {
            "range": [
                {
                    "fixed": "894a68acb678afc382fe5ea9002e61ab7f862011"
                }
            ],
            "source": "REFERENCES_COMMIT"
        }
    ]
}

Affected versions

0.*
0.103.0
0.103.0b0
0.103.0b1
0.103.1
0.103.2
0.103.3
0.103.4
0.103.5
0.103.6
0.104.0
0.104.1
0.104.2
0.104.3
0.105.0
0.105.1
0.105.2
0.105.3
0.105.4
0.105.5
0.106.0
0.106.1
0.106.2
0.106.3
0.106.4
0.106.5
0.106.6
0.107.0
0.107.1
0.107.2
0.107.3
0.107.4
0.107.5
0.107.6
0.107.7
0.108.0
0.108.1
0.108.2
0.108.3
0.108.4
0.108.5
0.108.6
0.108.7
0.108.8
0.108.9
0.109.0
0.109.1
0.109.2
0.109.3
0.109.4
0.109.5
0.109.6
0.110.0
0.110.1
0.110.2
0.110.3
0.110.4
0.110.5
0.110.6
0.110.7
0.111.0
0.111.1
0.111.2
0.111.3
0.111.4
0.112.0
0.112.1
0.112.2
0.112.3
0.112.4
0.112.5
0.113.0
0.113.1
0.113.2
0.113.3
0.114.0
0.114.1
0.114.2
0.114.3
0.114.4
0.115.0
0.115.1
0.115.2
0.115.3
0.115.4
0.115.5
0.115.6
0.116.0
0.116.1
0.116.2
0.116.3
0.116.4
0.117.0
0.117.1
0.117.2
0.117.3
0.117.4
0.117.5
0.117.6
0.118.0
0.118.1
0.118.2
0.118.3
0.118.4
0.118.5
0.28
0.7.6
0.81.1
2020.*
2020.12.0
2020.12.1
2020.12.2
2021.*
2021.1.0
2021.1.1
2021.1.2
2021.1.3
2021.1.4
2021.1.5
2021.10.0
2021.10.1
2021.10.2
2021.10.3
2021.10.4
2021.10.5
2021.10.6
2021.10.7
2021.11.0
2021.11.1
2021.11.2
2021.11.3
2021.11.4
2021.11.5
2021.12.0
2021.12.1
2021.12.10
2021.12.2
2021.12.3
2021.12.4
2021.12.5
2021.12.6
2021.12.7
2021.12.8
2021.12.9
2021.2.0
2021.2.1
2021.2.2
2021.2.3
2021.3.0
2021.3.1
2021.3.2
2021.3.3
2021.3.4
2021.4.0
2021.4.1
2021.4.2
2021.4.3
2021.4.4
2021.4.5
2021.4.6
2021.5.0
2021.5.1
2021.5.2
2021.5.3
2021.5.4
2021.5.5
2021.6.0
2021.6.1
2021.6.2
2021.6.3
2021.6.4
2021.6.5
2021.6.6
2021.7.0
2021.7.1
2021.7.2
2021.7.3
2021.7.4
2021.8.0
2021.8.1
2021.8.2
2021.8.3
2021.8.4
2021.8.5
2021.8.6
2021.8.7
2021.8.8
2021.9.0
2021.9.1
2021.9.2
2021.9.3
2021.9.4
2021.9.5
2021.9.6
2021.9.7
2022.*
2022.10.0
2022.10.1
2022.10.2
2022.10.3
2022.10.4
2022.10.5
2022.11.0
2022.11.1
2022.11.2
2022.11.3
2022.11.4
2022.11.5
2022.12.0
2022.12.1
2022.12.2
2022.12.3
2022.12.4
2022.12.5
2022.12.6
2022.12.7
2022.12.8
2022.12.9
2022.2.0
2022.2.1
2022.2.2
2022.2.3
2022.2.4
2022.2.5
2022.2.6
2022.2.7
2022.2.8
2022.2.9
2022.3.0
2022.3.1
2022.3.2
2022.3.3
2022.3.4
2022.3.5
2022.3.6
2022.3.7
2022.3.8
2022.4.0
2022.4.1
2022.4.2
2022.4.3
2022.4.4
2022.4.5
2022.4.6
2022.4.7
2022.5.0
2022.5.1
2022.5.2
2022.5.3
2022.5.4
2022.5.5
2022.6.0
2022.6.1
2022.6.2
2022.6.3
2022.6.4
2022.6.5
2022.6.6
2022.6.7
2022.7.0
2022.7.1
2022.7.2
2022.7.3
2022.7.4
2022.7.5
2022.7.6
2022.7.7
2022.8.0
2022.8.1
2022.8.2
2022.8.3
2022.8.4
2022.8.5
2022.8.6
2022.8.7
2022.9.0
2022.9.1
2022.9.2
2022.9.3
2022.9.4
2022.9.5
2022.9.6
2022.9.7
2023.*
2023.1.0
2023.1.1
2023.1.2
2023.1.3
2023.1.4
2023.1.5
2023.1.6
2023.1.7
2023.10.0
2023.10.1
2023.10.2
2023.10.3
2023.10.4
2023.10.5
2023.11.0
2023.11.1
2023.11.2
2023.11.3
2023.12.0
2023.12.1
2023.12.2
2023.12.3
2023.12.4
2023.2.0
2023.2.1
2023.2.2
2023.2.3
2023.2.4
2023.2.5
2023.3.0
2023.3.1
2023.3.2
2023.3.3
2023.3.4
2023.3.5
2023.3.6
2023.4.0
2023.4.1
2023.4.2
2023.4.3
2023.4.4
2023.4.5
2023.4.6
2023.5.0
2023.5.1
2023.5.2
2023.5.3
2023.5.4
2023.6.0
2023.6.1
2023.6.2
2023.6.3
2023.7.0
2023.7.1
2023.7.2
2023.7.3
2023.8.0
2023.8.1
2023.8.2
2023.8.3
2023.8.4
2023.9.0
2023.9.1
2023.9.2
2023.9.3
2024.*
2024.1.0
2024.1.1
2024.1.2
2024.1.3
2024.1.4
2024.1.5
2024.1.6
2024.10.0
2024.10.1
2024.10.2
2024.10.3
2024.11.0
2024.11.1
2024.11.2
2024.11.3
2024.12.0
2024.12.1
2024.12.2
2024.12.3
2024.12.4
2024.12.5
2024.2.0
2024.2.1
2024.2.2
2024.2.3
2024.2.4
2024.2.5
2024.3.0
2024.3.1
2024.3.2
2024.3.3
2024.4.0
2024.4.1
2024.4.2
2024.4.3
2024.4.4
2024.5.0
2024.5.1
2024.5.2
2024.5.3
2024.5.4
2024.5.5
2024.6.0
2024.6.1
2024.6.2
2024.6.3
2024.6.4
2024.7.0
2024.7.1
2024.7.2
2024.7.3
2024.7.4
2024.8.0
2024.8.1
2024.8.2
2024.8.3
2024.9.0
2024.9.1
2024.9.2
2024.9.3
2025.*
2025.1.0
2025.1.1
2025.1.2
2025.1.3
2025.1.4
2025.10.0
2025.10.1
2025.10.2
2025.10.3
2025.10.4
2025.11.0
2025.11.1
2025.11.2
2025.11.3
2025.12.0
2025.12.1
2025.12.2
2025.12.3
2025.12.4
2025.12.5
2025.2.0
2025.2.1
2025.2.2
2025.2.3
2025.2.4
2025.2.5
2025.3.0
2025.3.1
2025.3.2
2025.3.3
2025.3.4
2025.4.0
2025.4.1
2025.4.2
2025.4.3
2025.4.4
2025.5.0
2025.5.1
2025.5.2
2025.5.3
2025.6.0
2025.6.1
2025.6.2
2025.6.3
2025.7.0
2025.7.1
2025.7.2
2025.7.3
2025.7.4
2025.8.0
2025.8.1
2025.8.2
2025.8.3
2025.9.0
2025.9.1
2025.9.2
2025.9.3
2025.9.4
2026.*
2026.1.0
2026.1.1
2026.1.2
2026.1.3
2026.2.0
2026.2.1
2026.2.2
2026.2.3
2026.3.0
2026.3.1
2026.3.2
2026.3.3
2026.3.4
2026.4.0
2026.4.1
2026.4.2
2026.4.3
2026.4.4
2026.5.0
2026.5.1
2026.5.2
2026.5.3
Other
Last-Python2-release

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-64823.json"