CVE-2026-27172: Camel consul Apache Camel-Consul Component Vulnerable To Vulnerability

MODERATE
Advisory Identifier: GHSA-5rc6-9qfp-8vwg
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CVSS 6.3
CWE-502
Published
Advisory Summary

CVE-2026-27172 is a MODERATE (CVSS 6.3) apache camel-consul component vulnerable to vulnerability (CWE-502: Deserialization of Untrusted Data) affecting Camel consul libraries in the Maven ecosystem. The issue involves apache camel-consul component vulnerable to deserialization of untrusted data. Remediation is available by upgrading affected packages to version 4.14.6, 4.18.1.

CVE-2026-27172 at a Glance

CVE Identifier CVE-2026-27172
GHSA Identifier GHSA-5rc6-9qfp-8vwg
Severity MODERATE
CVSS v3.1 Base Score 6.3
CWE Classification CWE-502: Deserialization of Untrusted Data
Affected Product Camel consul
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 6.3

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality Low (C:L)
Integrity Low (I:L)
Availability Low (A:L)

How to Fix CVE-2026-27172

To remediate this vulnerability, upgrade all affected Camel consul dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

org.apache.camel:camel-consul fixed: 4.14.6 
<dependency>
    <groupId>org.apache.camel</groupId>
    <artifactId>camel-consul</artifactId>
    <version>4.14.6</version>
</dependency>
org.apache.camel:camel-consul fixed: 4.18.1 
<dependency>
    <groupId>org.apache.camel</groupId>
    <artifactId>camel-consul</artifactId>
    <version>4.18.1</version>
</dependency>
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

mvn dependency:tree -Dincludes=org.apache.camel

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2026-27172, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=org.apache.camel

Analyze the terminal output to locate any version of Camel consul in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 4.14.6), your application is affected.

Note: The mvn dependency:tree -Dincludes=org.apache.camel command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-502: Deserialization of Untrusted Data, where the product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid. In Camel consul, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

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.

CVE-2026-27172 Affected Camel consul Versions

2 component(s)
Fixed Versions:
4.14.64.18.1
Product / Package Ecosystem Affected Versions Fixed Version
org.apache.camel:camel-consul
maven/org.apache.camel/camel-consul
Maven
≥ 3.0.0
< 4.14.6
4.14.6
org.apache.camel:camel-consul
maven/org.apache.camel/camel-consul
Maven
≥ 4.15.0
< 4.18.1
4.18.1

References

NVD — CVE-2026-27172 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-27172
Camel consul Source Repository REPOSITORY
https://github.com/apache/camel/pull/21530
Camel consul Source Repository REPOSITORY
https://github.com/apache/camel/pull/21531
Camel consul Source Repository REPOSITORY
https://github.com/apache/camel/pull/21532
Security Fix Commit FIX COMMIT
https://github.com/apache/camel/commit/4b540e6e20bad4a4af19688b85a247bdb96c2e2d
Security Fix Commit FIX COMMIT
https://github.com/apache/camel/commit/4e3f709b97aef3ed99e3a52a99c752b37b104063
Security Fix Commit FIX COMMIT
https://github.com/apache/camel/commit/55dd9f8ce5f6db06f3946c3f3df1e2ea16e4f374
Camel consul Security Information SECURITY
https://camel.apache.org/security/CVE-2026-27172.html
Camel consul Source Repository REPOSITORY
https://github.com/apache/camel
issues.apache.org/jira/browse/camel-2... WEB
https://issues.apache.org/jira/browse/CAMEL-23029

Frequently Asked Questions

What is CVE-2026-27172?
CVE-2026-27172 is a security vulnerability in Camel consul involving Apache Camel-Consul component vulnerable to Deserialization of Untrusted Data under CWE-502: Deserialization of Untrusted Data.
Which Camel consul versions are affected?
Affected versions include releases prior to 4.14.6, 4.18.1 across affected packages: org.apache.camel:camel-consul.
What version fixes CVE-2026-27172?
Upgrading to 4.14.6, 4.18.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is camel-consul affected?
Yes, org.apache.camel:camel-consul is affected in releases prior to 4.14.6, 4.18.1. Upgrade your dependency to 4.14.6, 4.18.1 or later.
What is the CVSS score of CVE-2026-27172?
CVE-2026-27172 has a CVSS v3.1 base score of 6.3 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.
What CWE is associated with CVE-2026-27172?
CVE-2026-27172 is classified under CWE-502: Deserialization of Untrusted Data (The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.).
How can I check Maven dependencies for CVE-2026-27172?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=org.apache.camel'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-5rc6-9qfp-8vwg",
  "modified" : "2026-05-05T21:43:47Z",
  "published" : "2026-04-27T12:30:38Z",
  "aliases" : [ "CVE-2026-27172" ],
  "summary" : "Apache Camel-Consul component vulnerable to Deserialization of Untrusted Data",
  "details" : "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.\n\nThis issue affects Apache Camel: from 3.0.0 before 4.14.6, from 4.15.0 before 4.18.1.\n\nUsers 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.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L"
  } ],
  "affected" : [ {
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      "ecosystem" : "Maven",
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    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "3.0.0"
      }, {
        "fixed" : "4.14.6"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.apache.camel:camel-consul"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "4.15.0"
      }, {
        "fixed" : "4.18.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-27172"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/apache/camel/pull/21530"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/apache/camel/pull/21531"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/apache/camel/pull/21532"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/apache/camel/commit/4b540e6e20bad4a4af19688b85a247bdb96c2e2d"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/apache/camel/commit/4e3f709b97aef3ed99e3a52a99c752b37b104063"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/apache/camel/commit/55dd9f8ce5f6db06f3946c3f3df1e2ea16e4f374"
  }, {
    "type" : "WEB",
    "url" : "https://camel.apache.org/security/CVE-2026-27172.html"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/apache/camel"
  }, {
    "type" : "WEB",
    "url" : "https://issues.apache.org/jira/browse/CAMEL-23029"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-502" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-05-05T21:43:47Z",
    "nvd_published_at" : "2026-04-27T11:16:01Z"
  }
}