CVE-2023-26512Network attack vector

Remote code execution via untrusted message deserialization

Published Jul 17, 2023 · Updated Oct 2, 2024

Deserialization in Apache EventMesh RabbitMQ Connector 1.7.0 through 1.8.0 allows remote attackers to execute code via RabbitMQ messages. The rabbitmq-connector module deserializes attacker-controlled message content during message handling instead of treating it as untrusted data. Exploitation requires the vulnerable connector to consume a crafted RabbitMQ message, and successful code runs with the connector process's privileges.

CVSS severity9.8
Critical
EPSS probability1.45%
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 EventMesh RabbitMQ Connector 1.7.0 through 1.8.0 allows remote attackers to execute code via RabbitMQ messages. The rabbitmq-connector module deserializes attacker-controlled message content during message handling instead of treating it as untrusted data. Exploitation requires the vulnerable connector to consume a crafted RabbitMQ message, and successful code runs with the connector process's privileges.

The record

CVE
CVE-2023-26512
Published
Jul 17, 2023
Updated
Oct 2, 2024
Vendor
The Apache Software Foundation
Product
Apache EventMesh RabbitMQ Connector
Classifications
CWE-502, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 17, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 2, 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=1.7.0 <=1.8.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

The Apache Software Foundation · Apache EventMesh RabbitMQ Connectorversion=1.7.0 <=1.8.0
The Apache Software Foundation · Apache EventMeshversion=1.7.0 <=1.8.0

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

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

Weakness, pattern, technique

CWE-502Deserialization of Untrusted Data
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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