---
title: "CVE-2026-88789: Apache Camel Quarkus - XML External Entity Injection"
description: "Apache Camel Quarkus 3.2.0 before 3.33.3 and 3.34.0 before 3.40.0 contains an XML External Entity Injection caused by insecure Xalan-backed TransformerFactory in the XSLT support extension, letting attackers read local files or access internal network via crafted XML, exploit requires supplying malicious XML document."
url: https://panop.io/threat-heartbeat/CVE-2026-88789/
---

# CVE-2026-88789 Apache Camel Quarkus - XML External Entity Injection

Apache Camel Quarkus 3.2.0 before 3.33.3 and 3.34.0 before 3.40.0 contains an XML External Entity Injection caused by insecure Xalan-backed TransformerFactory in the XSLT support extension, letting attackers read local files or access internal network via crafted XML, exploit requires supplying malicious XML document.

CVSS base score 8.6 /10

High

CISA KEV

Not listed

Public exploit

Proof of concept available

Authentication

Not required

EPSS

0.52% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-88789)

## Details

Type

XML External Entity Injection

Impact

Information Disclosure, File System Read

CVSS vector

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

Published

1 October 2026

Updated

15 October 2026

Weakness

[CWE-611](https://cwe.mitre.org/data/definitions/611.html)

## Vendor fix

Upgrade to version 3.33.3 or 3.40.0 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-2026-88789](https://nvd.nist.gov/vuln/detail/CVE-2026-88789)
- [https://camel.apache.org/security/CVE-2026-88789.html](https://camel.apache.org/security/CVE-2026-88789.html)
- [https://github.com/apache/camel-quarkus/commit/9a570b64977b0e24f85d67c2b2220aeac9fa5274](https://github.com/apache/camel-quarkus/commit/9a570b64977b0e24f85d67c2b2220aeac9fa5274)
- [https://github.com/apache/camel-quarkus/commit/9dd11779580cd88e4ab01b23717cd0167f26155c](https://github.com/apache/camel-quarkus/commit/9dd11779580cd88e4ab01b23717cd0167f26155c)
- [https://github.com/apache/camel-quarkus/issues/9115](https://github.com/apache/camel-quarkus/issues/9115)
- [http://www.openwall.com/lists/oss-security/2026/10/01/1](http://www.openwall.com/lists/oss-security/2026/10/01/1)

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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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