Is CVE-2026-40473 actively exploited?

No active exploitation of CVE-2026-40473 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-40473 be exploited remotely?

Yes. CVE-2026-40473 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-40473?

CVE-2026-40473 has a CVSS score of 8.8 (HIGH).

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HIGH

CVE-2026-40473

CWE-502Published: April 27, 2026· Updated: Apr 28, 2026

8.8

CVSS v3.1

EPSS:0.11%probability of exploitation in 30 daysPercentile:28.9th

Official Description

The camel-mina component's MinaConverter.toObjectInput(IoBuffer) type converter wraps an IoBuffer in a java.io.ObjectInputStream without applying any ObjectInputFilter or class-loading restrictions. When a Camel route uses camel-mina as a TCP or UDP consumer and requests conversion to ObjectInput (for example via getBody(ObjectInput.class) or @Body ObjectInput), an attacker sending a crafted serialized Java object over the network to the MINA consumer port can trigger arbitrary code execution in the context of the application during readObject().

This issue affects Apache Camel: from 3.0.0 before 4.14.6, 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 4.14.6. If users are on the 4.18.x releases stream, then they are suggested to upgrade to 4.18.2.

NVD Source

Technical Analysis

CVE-2026-40473 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.

From a weakness classification perspective (CWE-502): Insecure deserialization vulnerabilities allow attackers to inject malicious objects during deserialization, potentially enabling remote code execution.