---
title: "CVE-2026-78164: Apache Camel - Template Injection"
description: "Apache Camel 4.0.0 to before 4.18.5 and 4.19.0 to before 4.22.1 contain a template injection caused by improper neutralization of special elements in HTTP producer headers, letting attackers expose sensitive configuration and secrets, exploit requires header override capability."
url: https://panop.io/threat-heartbeat/CVE-2026-78164/
---

# CVE-2026-78164 Apache Camel - Template Injection

Apache Camel 4.0.0 to before 4.18.5 and 4.19.0 to before 4.22.1 contain a template injection caused by improper neutralization of special elements in HTTP producer headers, letting attackers expose sensitive configuration and secrets, exploit requires header override capability.

CVSS base score 8.2 /10

High

CISA KEV

Not listed

Public exploit

Proof of concept available

Authentication

Not required

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-78164)

## Details

Type

Template Injection

Impact

Information Disclosure

CVSS vector

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

Published

19 October 2026

Updated

20 October 2026

Weakness

[CWE-200](https://cwe.mitre.org/data/definitions/200.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-2026-78164](https://nvd.nist.gov/vuln/detail/CVE-2026-78164)
- [https://camel.apache.org/security/CVE-2026-78164.html](https://camel.apache.org/security/CVE-2026-78164.html)
- [https://github.com/apache/camel/commit/7cec534c66969015d85e56631143174dd150ed94](https://github.com/apache/camel/commit/7cec534c66969015d85e56631143174dd150ed94)
- [https://github.com/apache/camel/commit/9f8a185e315ce9e120889c4106be3dbf4688e507](https://github.com/apache/camel/commit/9f8a185e315ce9e120889c4106be3dbf4688e507)
- [https://github.com/apache/camel/commit/ba5aced7f6a1c38a963020575676ad4c76b492cf](https://github.com/apache/camel/commit/ba5aced7f6a1c38a963020575676ad4c76b492cf)
- [https://github.com/apache/camel/pull/25571](https://github.com/apache/camel/pull/25571)
- [https://issues.apache.org/jira/browse/CAMEL-24418](https://issues.apache.org/jira/browse/CAMEL-24418)

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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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