What’s Vulnerable › Vulnerabilities

CVE-2021-40143

• Severity: high (CVSS 8.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-09-07 · updated 2026-09-22
• Weakness: CWE-74

Description

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 products

• Sonatype Nexus Repository 3: from 3.0.0 before 3.34.1-01 — fixed in 3.34.1-01

How to fix

Upgrade to a fixed version: Sonatype Nexus Repository 3 3.34.1-01. Check the vendor advisory for mitigations.

References

• https://issues.sonatype.org/secure/ReleaseNote.jspa
• https://support.sonatype.com/hc/en-us/articles/4405941762579
• https://issues.sonatype.org/secure/ReleaseNote.jspa
• https://support.sonatype.com/hc/en-us/articles/4405941762579

Get alerted when CVE-2021-40143 or the next vulnerability affects your stack