---
title: "CVE-2026-83531: Apache Camel - Expression Language Injection"
description: "Apache Camel from 4.4.0 before 4.18.5 and from 4.19.0 before 4.22.1 contains an expression language injection caused by unvalidated dynamic predicate expressions in dynamic-router-control endpoint, letting attackers send crafted expressions evaluated with Camel process privileges, exploit requires ability to send messages to dynamic-router-control endpoint."
url: https://panop.io/threat-heartbeat/CVE-2026-83531/
---

# CVE-2026-83531 Apache Camel - Expression Language Injection

Apache Camel from 4.4.0 before 4.18.5 and from 4.19.0 before 4.22.1 contains an expression language injection caused by unvalidated dynamic predicate expressions in dynamic-router-control endpoint, letting attackers send crafted expressions evaluated with Camel process privileges, exploit requires ability to send messages to dynamic-router-control endpoint.

CVSS base score 8.8 /10

High

CISA KEV

Not listed

Public exploit

Proof of concept available

Authentication

Required

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-83531)

## Details

Type

Expression Language Injection

Impact

Remote Code Execution

CVSS vector

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

Published

19 October 2026

Updated

20 October 2026

Weakness

[CWE-94](https://cwe.mitre.org/data/definitions/94.html)

## Vendor fix

Upgrade to versions 4.23.0, 4.22.1, or 4.18.5 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-83531](https://nvd.nist.gov/vuln/detail/CVE-2026-83531)
- [https://github.com/apache/camel/pull/26019](https://github.com/apache/camel/pull/26019)
- [https://github.com/apache/camel/pull/26020](https://github.com/apache/camel/pull/26020)
- [https://issues.apache.org/jira/browse/CAMEL-24576](https://issues.apache.org/jira/browse/CAMEL-24576)
- [https://camel.apache.org/security/CVE-2026-83531.html](https://camel.apache.org/security/CVE-2026-83531.html)
- [https://github.com/apache/camel/pull/25992](https://github.com/apache/camel/pull/25992)
- [https://github.com/apache/camel/pull/26018](https://github.com/apache/camel/pull/26018)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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