---
id: CVE-2026-73099
title: >-
  Apache Juneau: Cross-site request forgery via default-enabled content
  query-parameter body override
summary: >-
  Cross-Site Request Forgery (CSRF) vulnerability in Apache Juneau.


  The REST server accepts a "content" query parameter that replaces the request
  body, and this is enabled by default on every HTTP method, including GET. A
  cross-site link …
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-352
vendor: Apache Software Foundation
product: 'org.apache.juneau:juneau-rest-server.'
affected:
  - 'org.apache.juneau:juneau-rest-server. < 9.2.1'
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: total
  timestamp: '2026-11-05T16:59:34.514495Z'
published: '2026-11-05'
updated: '2026-11-05'
sourceUpdated: '2026-11-05T19:03:53.395Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-73099'
references:
  - url: 'https://lists.apache.org/thread.html/j05q7vw08j48o96tdlzcsd4sozx1lyl6'
tags:
  - cve.org
ingestedAt: '2026-11-05T22:38:31.497Z'
epss: 0.00214
epssPercentile: 0.11871
---

## Overview

Cross-Site Request Forgery (CSRF) vulnerability in Apache Juneau.

The REST server accepts a "content" query parameter that replaces the request body, and this is enabled by default on every HTTP method, including GET. A cross-site link can therefore deliver an attacker-chosen request body to an endpoint without a CORS preflight, defeating protections that rely on the HTTP method or content type instead of an anti-CSRF token.

This issue affects Apache Juneau: through 9.2.0.

Users are recommended to upgrade to version 9.2.1, which fixes the issue. Applications that do not use the content parameter can also set disableContentParam to true.

## Affected

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

## Remediation

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