---
id: CVE-2026-73100
title: >-
  Apache Juneau: Sensitive request headers logged in cleartext by the default
  request logger on server errors
summary: >-
  Insertion of Sensitive Information into Log File vulnerability in Apache
  Juneau.


  The default REST server call logger records request headers for requests that
  end in a server error, without redacting them. Any client able to cause a ser…
severity: critical
cvss: 10
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H'
cvssSource: cna
cwe:
  - CWE-532
vendor: Apache Software Foundation
product: 'org.apache.juneau:juneau-rest-server'
affected:
  - 'org.apache.juneau:juneau-rest-server < 9.2.1'
  - 'org.apache.juneau:juneau-rest-common < 9.2.1'
published: '2026-11-05'
updated: '2026-11-05'
sourceUpdated: '2026-11-05T11:50:50.797Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-73100'
references:
  - url: 'https://lists.apache.org/thread.html/j05q7vw08j48o96tdlzcsd4sozx1lyl6'
tags:
  - cve.org
ingestedAt: '2026-11-05T21:36:00.828Z'
---

## Overview

Insertion of Sensitive Information into Log File vulnerability in Apache Juneau.

The default REST server call logger records request headers for requests that end in a server error, without redacting them. Any client able to cause a server error gets headers such as Authorization, Cookie, Proxy-Authorization and X-API-Key written in cleartext to the application log, exposing them to anyone who can read the logs.

This issue affects Apache Juneau: through 9.2.0.

Users are recommended to upgrade to version 9.2.1, which fixes the issue.

## Affected

- `org.apache.juneau:juneau-rest-server < 9.2.1`
- `org.apache.juneau:juneau-rest-common < 9.2.1`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.