---
id: CVE-2021-40143
title: >-
  Sonatype Nexus Repository 3.x through 3.33.1-01 is vulnerable to an HTTP
  header injection
summary: >-
  Sonatype Nexus Repository 3.x through 3.33.1-01 is vulnerable to an HTTP
  header injection. By sending a crafted HTTP request, a remote attacker may
  disclose sensitive information or request external resources from a vulnerable
  instance.
severity: high
cvss: 8.2
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N'
cwe:
  - CWE-74
vendor: sonatype
product: nexus_repository_manager
affected:
  - 'nexus_repository_manager >= 3.0.0, < 3.34.1-01'
patched:
  - nexus_repository_manager 3.34.1-01
published: '2021-09-07'
updated: '2026-09-22'
sourceUpdated: '2026-09-22T18:12:20.300'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2021-40143'
references:
  - url: 'https://issues.sonatype.org/secure/ReleaseNote.jspa'
    label: cve@mitre.org
  - url: 'https://support.sonatype.com/hc/en-us/articles/4405941762579'
    label: cve@mitre.org
  - url: 'https://issues.sonatype.org/secure/ReleaseNote.jspa'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://support.sonatype.com/hc/en-us/articles/4405941762579'
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
epss: 0.02322
epssPercentile: 0.82755
ingestedAt: '2026-09-22T19:09:09.959Z'
---

## Overview

Sonatype Nexus Repository 3.x through 3.33.1-01 is vulnerable to an HTTP header injection. By sending a crafted HTTP request, a remote attacker may disclose sensitive information or request external resources from a vulnerable instance.

## Affected

- `nexus_repository_manager >= 3.0.0, < 3.34.1-01`

## Remediation

Upgrade past the affected range:

- `nexus_repository_manager 3.34.1-01`