← Vulnerability feed

Vulnerability record · CVE-2026-40858 · published 27 April 2026

CVE-2026-40858: Apache camel deserialization of untrusted data vulnerability

Apache · Camel

The camel-infinispan component's ProtoStream-based remote aggregation repository deserializes data read from a remote Infinispan cache using java.io.ObjectInputStream without applying any ObjectInputFilter. An attacker who can write to the Infinispan cache used by a Camel application can inject a crafted serialized Java object that, when read during normal aggregation repository operations such as get or recover, results in arbitrary code execution in the context of the application. This issue affects Apache Camel: from 4.0.0 before 4.14.7, from 4.15.0 before 4.18.2, from 4.19.0 before 4.20.0. Users are recommended to upgrade to version 4.20.0, which fixes the issue. If users are on the 4.14.x LTS releases stream, then they are suggested to upgrade to 4.14.7. If users are on the 4.18.x releases stream, then they are suggested to upgrade to 4.18.2. The JIRA ticket: https://issues.apache.org/jira/browse/CAMEL-23322 refers to the various commits that resolved the issue, and have more details. This issue follows the same class of vulnerability previously addressed in CVE-2024-22369, CVE-2024-23114 and CVE-2026-25747.

8.8 CVSS 3.1 High EPSS 1.2% · top 32.4% CWE-502 · Deserialization of untrusted data
8.8CVSS 3.1 base score
1.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References
9 Sep 2026Last modified by NVD

Description

The camel-infinispan component's ProtoStream-based remote aggregation repository deserializes data read from a remote Infinispan cache using java.io.ObjectInputStream without applying any ObjectInputFilter. An attacker who can write to the Infinispan cache used by a Camel application can inject a crafted serialized Java object that, when read during normal aggregation repository operations such as get or recover, results in arbitrary code execution in the context of the application. This issue affects Apache Camel: from 4.0.0 before 4.14.7, from 4.15.0 before 4.18.2, from 4.19.0 before 4.20.0. Users are recommended to upgrade to version 4.20.0, which fixes the issue. If users are on the 4.14.x LTS releases stream, then they are suggested to upgrade to 4.14.7. If users are on the 4.18.x releases stream, then they are suggested to upgrade to 4.18.2. The JIRA ticket: https://issues.apache.org/jira/browse/CAMEL-23322 refers to the various commits that resolved the issue, and have more details. This issue follows the same class of vulnerability previously addressed in CVE-2024-22369, CVE-2024-23114 and CVE-2026-25747.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://camel.apache.org/security/CVE-2026-40858.html Vendor Advisory
https://access.redhat.com/errata/RHSA-2026:17668
https://access.redhat.com/errata/RHSA-2026:22453
https://access.redhat.com/security/cve/CVE-2026-40858
https://bugzilla.redhat.com/show_bug.cgi?id=2463179
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-40858.json

Track CVE-2026-40858 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2026-33453Apache camel mass assignment vulnerabilityImproperly Controlled Modification of Dynamically-Determined Object Attributes vulnerability in Apache Camel Camel-Coap component. Apache Camel's cam…EPSS 7.2%9.9CVE-2026-40453Apache camel vulnerabilityThe fix for CVE-2025-27636 added setLowerCase(true) to HttpHeaderFilterStrategy so that case-variant header names such as 'CAmelExecCommandExecutable…EPSS 1.9%9.8CVE-2026-80352Apache camel code injection vulnerabilityImproper Control of Generation of Code ('Code Injection') vulnerability in Apache Camel K. A YAML injection vulnerability in custom resource configur…EPSS 0.84%9.8CVE-2026-80351Apache camel vulnerabilityImproper neutralization of directives in dynamically evaluated code ('eval injection') vulnerability in Apache Camel K. An improper neutralization of…EPSS 1.0%9.8CVE-2026-78329Apache camel improper input validation vulnerabilityImproper input validation vulnerability in Apache Camel Undertow component. This issue affects Apache Camel: from 4.11.0 before 4.14.9, from 4.15.0 b…EPSS 0.74%9.8CVE-2026-71300Apache camel improper input validation vulnerabilityImproper input validation vulnerability in Apache Camel Atmosphere Websocket component. This issue affects Apache Camel: from 4.0.0 before 4.14.9, fr…EPSS 0.74%9.8CVE-2026-56140Apache camel improper input validation vulnerabilityImproper Input Validation vulnerability in Apache Camel AWS SNS component. The camel-aws2-sns component filters Camel headers through a component-spe…EPSS 0.74%9.8CVE-2026-53913Apache camel improper authentication vulnerabilityImproper Authentication, Missing Authentication for Critical Function, Not Failing Securely ('Failing Open') vulnerability in Apache Camel Keycloak C…EPSS 1.1%

Source: NIST National Vulnerability Database (record CVE-2026-40858), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.