CVE-2026-40860Network attack vector

Remote code execution via unfiltered JMS deserialization

Published Apr 27, 2026 · Updated Apr 27, 2026

Unsafe deserialization in Apache Camel JMS consumers allows remote attackers to execute code via crafted ObjectMessage values. JmsBinding.extractBodyFromJms() calls ObjectMessage.getObject() without an ObjectInputFilter or class restrictions when mapJmsMessage is enabled. Exploitation requires permission to publish to a consumed queue or topic and a usable deserialization gadget chain on the application classpath.

CVSS severity9.8
Critical
EPSS probability1.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Unsafe deserialization in Apache Camel JMS consumers allows remote attackers to execute code via crafted ObjectMessage values. JmsBinding.extractBodyFromJms() calls ObjectMessage.getObject() without an ObjectInputFilter or class restrictions when mapJmsMessage is enabled. Exploitation requires permission to publish to a consumed queue or topic and a usable deserialization gadget chain on the application classpath.

The record

CVE
CVE-2026-40860
Published
Apr 27, 2026
Updated
Apr 27, 2026
Vendor
The Apache Software Foundation
Product
Apache Camel
Classifications
CWE-502, T1210
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 27, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 27, 2026Record 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=3.0.0 <4.14.7
  2. Affected versionversion=4.15.0 <4.18.2
  3. Affected versionversion=4.19.0 <4.20.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

The Apache Software Foundation · Apache Camelversion=3.0.0 <4.14.7; version=4.15.0 <4.18.2; version=4.19.0 <4.20.0

Published CVSS scores

7.5Red HatCVSS:3.1/AV:N/AC:H/PR:L/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
T1210Exploitation of Remote Services

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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