CVE-2026-27172: Apache Camel: Unsafe Java deserialization in camel-consul ConsulRegistry allows arbitrary code execution via malicious values read from the Consul KV store
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.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Apache Camel (camel-consul / ConsulRegistry)to a version that resolves this vulnerability.Fixed in 4.14.6 - Upgrade
Upgrade
Apache Camel (camel-consul / ConsulRegistry)to a version that resolves this vulnerability.Fixed in 4.18.1 - Upgrade
Upgrade
Apache Camel (camel-consul / ConsulRegistry)to a version that resolves this vulnerability.Fixed in 4.19.0
Event History
Frequently Asked Questions
What is the severity of CVE-2026-27172?
The severity of CVE-2026-27172 is critical due to the potential for arbitrary code execution.
How do I fix CVE-2026-27172?
To fix CVE-2026-27172, upgrade Apache Camel to a version above 4.14.6 or 4.18.1.
What software is affected by CVE-2026-27172?
CVE-2026-27172 affects Apache Camel versions between 3.0.0 to 4.14.6 and 4.15.0 to 4.18.1.
What vectors allow exploitation of CVE-2026-27172?
Exploitation of CVE-2026-27172 is possible through unsafe Java serialization and malicious values from the Consul KV store.
What are the implications of not addressing CVE-2026-27172?
Failing to address CVE-2026-27172 could lead to unauthorized remote code execution, compromising system security.