CVE-2021-40143
HTTP header injection in Sonatype Nexus Repository
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2021-40143- CVSS 3.1
- 8.2 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N - CVSS 2.0
- 6.4 Medium
AV:N/AC:L/Au:N/C:P/I:P/A:N - Weakness
- CWE-74
- Updated
- 2026-11-02
CVE ListNo score
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.
- Record
CVE-2021-40143- Updated
- 2026-11-02
EUVDEUVD-2021-2046No score
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.
- Record
EUVD-2021-2046- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-f34x-8pf6-qc9c
HTTP header injection in Sonatype Nexus Repository
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.
- Record
GHSA-f34x-8pf6-qc9c- CVSS 3.1
- 8.2 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N - Weakness
- CWE-74
- Updated
- 2026-11-02
OSV
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.
- Record
CVE-2021-40143- CVSS 3.1
- 8.2 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N - Updated
- 2026-11-02
OSVGHSA-f34x-8pf6-qc9c
HTTP header injection in Sonatype Nexus Repository
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.
- Record
GHSA-f34x-8pf6-qc9c- CVSS 3.1
- 8.2 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N - Weakness
- CWE-74
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
org.sonatype.nexus:nexus-repositoryMaven | 3.0.0 to 3.33.1-01 | 3.34.0-01 |
org.sonatype.nexus:nexus-repositoryMaven | 3.0.0 up to 3.34.0-01, plus listed versions 3.0.0-033.0.1-013.0.2-023.1.0-043.10.0-04 Show 45 moreShow less3.11.0-013.12.0-013.12.1-013.13.0-013.14.0-043.15.0-013.15.1-013.15.2-013.15.3-013.16.0-013.16.1-023.16.2-013.17.0-013.17.1-013.17.2-033.18.0-013.18.1-013.19.0-013.19.1-013.2.0-013.2.1-013.20.0-023.20.0-043.20.1-013.20.2-013.20.3-013.21.0-013.21.0-023.21.0-053.21.1-013.21.2-033.22.0-013.22.0-023.22.1-013.22.1-023.23.0-013.23.0-033.24.0-013.24.0-023.25.0-023.25.0-033.25.1-013.25.1-023.25.1-033.25.1-04 | 3.34.0-01 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-40143 is a high vulnerability (CVSS 8.2) in Sonatype Nexus Repository Manager, published September 7, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.32%, the 83rd percentile. Fixed in org.sonatype.nexus:nexus-repository 3.34.0-01.
References
Left out here: 34 versions. The JSON record has them.