CVE-2024-43383

Remote code execution via typed JSON error deserialization

Published Oct 31, 2024 · Updated Oct 31, 2024

Deserialization in Apache Lucene.Net.Replicator 4.8.0-beta00005 through 4.8.0-beta00016 allows attackers to execute code via HTTP errors. HttpClientBase.ThrowKnownError uses Json.NET with TypeNameHandling.All to instantiate an exception type named in an untrusted HTTP error response. Exploitation requires interception of client-server traffic or control of the replication node URL, and successful payloads run code in the client process.

CVSS severity8.0
High
EPSS probability1.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Deserialization in Apache Lucene.Net.Replicator 4.8.0-beta00005 through 4.8.0-beta00016 allows attackers to execute code via HTTP errors. HttpClientBase.ThrowKnownError uses Json.NET with TypeNameHandling.All to instantiate an exception type named in an untrusted HTTP error response. Exploitation requires interception of client-server traffic or control of the replication node URL, and successful payloads run code in the client process.

The record

CVE
CVE-2024-43383
Published
Oct 31, 2024
Updated
Oct 31, 2024
Vendor
The Apache Software Foundation
Product
Apache Lucene.Net.Replicator
Classifications
CWE-502, T1557
Attack vector
adjacent
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 31, 2024CVE publishedPublication date reported by the CVE source.
  2. Oct 31, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=4.8.0-beta00005 <=4.8.0-beta00016

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesauthenticated

What is affected?

The Apache Software Foundation · Apache Lucene.Net.Replicatorversion=4.8.0-beta00005 <=4.8.0-beta00016
The Apache Software Foundation · Apache Luceneversion=4.8.0-beta00005 <=4.8.0-beta00016

Published CVSS scores

8.0Apache Software FoundationCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-502Deserialization of Untrusted Data
T1557Adversary-in-the-Middle

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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