CVE-2024-45772

Unspecified impact via untrusted HTTP deserialization

Published Sep 30, 2024 · Updated Dec 12, 2024

Deserialization in Apache Lucene Replicator 4.4.0 through 9.11.1 allows remote attackers to cause unspecified impact through HTTP. The deprecated org.apache.lucene.replicator.http package deserializes data received through its HTTP API, but Apache has not disclosed the exact class, method, or object stream involved. Reachability requires an actively deployed network-accessible implementation and corresponding client using the API; the published assessment requires high privileges.

CVSS severity5.1
Medium
EPSS probability0.58%
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 Replicator 4.4.0 through 9.11.1 allows remote attackers to cause unspecified impact through HTTP. The deprecated org.apache.lucene.replicator.http package deserializes data received through its HTTP API, but Apache has not disclosed the exact class, method, or object stream involved. Reachability requires an actively deployed network-accessible implementation and corresponding client using the API; the published assessment requires high privileges.

The record

CVE
CVE-2024-45772
Published
Sep 30, 2024
Updated
Dec 12, 2024
Vendor
The Apache Software Foundation
Product
Apache Lucene Replicator
Classifications
CWE-502
Attack vector
adjacent
Privileges
admin

Timeline

How it unfolded

  1. Sep 30, 2024CVE publishedPublication date reported by the CVE source.
  2. Dec 12, 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?

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  1. Affected versionversion=4.4.0 <9.12.0

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesadmin

What is affected?

The Apache Software Foundation · Apache Lucene Replicatorversion=4.4.0 <9.12.0

Published CVSS scores

5.1GitHub Advisory DatabaseCVSS:3.1/AV:A/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:L

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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-502Deserialization of Untrusted Data

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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