CVE-2026-43867Public exploitNetwork attack vector

Authenticated code execution via unfiltered metadata deserialization

Published Jul 6, 2026 · Updated Jul 6, 2026

Unsafe deserialization in Apache Camel PQC 4.18.0 through 4.18.2 and 4.19.0 through 4.20.0 allows remote authenticated users to execute code. AwsSecretsManagerKeyLifecycleManager.deserializeMetadata() Base64-decodes secret metadata and calls ObjectInputStream.readObject() without a filter before casting the result. Exploitation requires secretsmanager:PutSecretValue access to the metadata secret and a usable deserialization gadget on the application classpath; successful exploitation runs code in the key-managing application.

CVSS severity9.8
Critical
EPSS probability0.93%
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 PQC 4.18.0 through 4.18.2 and 4.19.0 through 4.20.0 allows remote authenticated users to execute code. AwsSecretsManagerKeyLifecycleManager.deserializeMetadata() Base64-decodes secret metadata and calls ObjectInputStream.readObject() without a filter before casting the result. Exploitation requires secretsmanager:PutSecretValue access to the metadata secret and a usable deserialization gadget on the application classpath; successful exploitation runs code in the key-managing application.

The record

CVE
CVE-2026-43867
Published
Jul 6, 2026
Updated
Jul 6, 2026
Vendor
The Apache Software Foundation
Product
Apache Camel
Classifications
CWE-502
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 6, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 6, 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=4.18.0 <4.18.3
  2. Affected versionversion=4.19.0 <4.21.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

The Apache Software Foundation · Apache Camelversion=4.18.0 <4.18.3; version=4.19.0 <4.21.0

Published CVSS scores

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-502Deserialization of Untrusted Data

Public exploit references

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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