CVE-2026-27172
HIGHApache Camel: Unsafe Java deserialization in camel-consul ConsulRegistry allows arbitrary code execution via malicious values read from the Consul KV store
Title source: cnaExploitation Summary
EIP tracks 2 public exploits for CVE-2026-27172. PoCs published by SecureWithUmer, oscerd.
AI-analyzed exploit summary This repository provides a functional proof-of-concept for CVE-2026-27172, a Java deserialization vulnerability in Apache Camel's ConsulRegistry component. The exploit demonstrates how an attacker with write access to the Consul KV store can inject a malicious serialized payload that gets deserialized without proper filtering, leading to remote code execution.
Description
The ConsulRegistry in the camel-consul component (class org.apache.camel.component.consul.ConsulRegistry and its inner ConsulRegistryUtils.deserialize method) read Java-serialized values from the Consul KV store and passed them to ObjectInputStream.readObject() without configuring an ObjectInputFilter. An attacker who can write to the Consul KV store backing a Camel ConsulRegistry instance could inject a malicious serialized Java object that is deserialized the next time Camel performs a lookup against that registry, leading to arbitrary code execution in the Camel process. The issue mirrors the class of vulnerability already addressed for other Camel components in CVE-2024-22369, CVE-2024-23114 and CVE-2026-25747, and was overlooked during the original remediation of those CVEs. This issue affects Apache Camel: from 3.0.0 before 4.14.6, from 4.15.0 before 4.18.1. Users are recommended to upgrade to version 4.19.0, 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 4.18.1.
Exploits (2)
This repository provides a functional proof-of-concept for CVE-2026-27172, a Java deserialization vulnerability in Apache Camel's ConsulRegistry component. The exploit demonstrates how an attacker with write access to the Consul KV store can inject a malicious serialized payload that gets deserialized without proper filtering, leading to remote code execution.
This repository provides a functional proof-of-concept for CVE-2026-27172, a Java deserialization vulnerability in Apache Camel's ConsulRegistry component. The exploit demonstrates how an attacker with write access to the Consul KV store can inject a malicious payload that gets deserialized without proper filtering, leading to remote code execution.
References (4)
Scores
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H