How severe is CVE-2023-41898?

CVE-2023-41898 has a CVSS 3.x base score of 8.6, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-41898 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-41898?

CVE-2023-41898 affects Home-assistant Home Assistant Companion. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-41898?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2023-41898 published?

CVE-2023-41898 was published on 2023-10-19 and last updated on 2026-06-17.

CVE-2023-41898

CVE-2023-41898 is a high-severity vulnerability in Home-assistant Home Assistant Companion with a CVSS 3.x base score of 8.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-94.

Key facts

Severity: High (CVSS 3.x base score 8.6)
EPSS exploit prediction: 0% (6th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-94
Affected product: Home-assistant Home Assistant Companion
Published: 2023-10-19
Last modified: 2026-06-17

Description

Home assistant is an open source home automation. The Home Assistant Companion for Android app up to version 2023.8.2 is vulnerable to arbitrary URL loading in a WebView. This enables all sorts of attacks, including arbitrary JavaScript execution, limited native code execution, and credential theft. This issue has been patched in version 2023.9.2 and all users are advised to upgrade. There are no known workarounds for this vulnerability. This issue is also tracked as GitHub Security Lab (GHSL) Vulnerability Report: `GHSL-2023-142`.

Frequently asked questions

What is CVE-2023-41898?: Home assistant is an open source home automation. The Home Assistant Companion for Android app up to version 2023.8.2 is vulnerable to arbitrary URL loading in a WebView. This enables all sorts of attacks, including arbitrary JavaScript execution, limited native code execution, and credential theft. This issue has been patched in version 2023.9.2 and all users are advised to upgrade. There are no known workarounds for this vulnerability. This issue is also tracked as GitHub Security Lab (GHSL) Vulnerability Report: `GHSL-2023-142`.
How severe is CVE-2023-41898?: CVE-2023-41898 has a CVSS 3.x base score of 8.6, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-41898 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-41898?: CVE-2023-41898 affects Home-assistant Home Assistant Companion. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-41898?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-41898 published?: CVE-2023-41898 was published on 2023-10-19 and last updated on 2026-06-17.

References

https://github.com/home-assistant/core/security/advisories/GHSA-jvpm-q3hq-86rg

Affected products (1)

cpe:2.3:a:home-assistant:home_assistant_companion:*:*:*:*:*:android:*:*

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