---
id: CVE-2026-73116
title: >-
  Apache Juneau: REST client forwards credentials to a different origin when
  following HTTP redirects
summary: >-
  Insufficiently Protected Credentials vulnerability in Apache Juneau.


  The Apache Juneau RestClient followed HTTP redirects while keeping credential
  headers from the original request, so a server that redirected the client to a
  different …
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-522
vendor: Apache Software Foundation
product: 'org.apache.juneau:juneau-rest-client'
affected:
  - 'org.apache.juneau:juneau-rest-client < 9.2.1'
  - 'org.apache.juneau:juneau-rest-common < 9.2.1'
published: '2026-11-05'
updated: '2026-11-05'
sourceUpdated: '2026-11-05T11:53:52.274Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-73116'
references:
  - url: 'https://lists.apache.org/thread.html/j05q7vw08j48o96tdlzcsd4sozx1lyl6'
tags:
  - cve.org
ingestedAt: '2026-11-05T21:36:00.829Z'
---

## Overview

Insufficiently Protected Credentials vulnerability in Apache Juneau.

The Apache Juneau RestClient followed HTTP redirects while keeping credential headers from the original request, so a server that redirected the client to a different host or port, or from HTTPS to HTTP, could receive headers such as Authorization, Cookie, Proxy-Authorization and X-API-Key.

This issue affects Apache Juneau: through 9.2.0.

Users are recommended to upgrade to version 9.2.1, which fixes the issue. The fix applies to HTTP clients created by the RestClient builder; applications that supply their own HttpClient must disable automatic redirects or strip credential headers on cross-origin redirects themselves.

## Affected

- `org.apache.juneau:juneau-rest-client < 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.