CVE-2021-40143 json
HTTP header injection in Sonatype Nexus Repository
published 2021-09-07 5 y ago modified 2026-09-22 47 d ago also GHSA-f34x-8pf6-qc9c , EUVD-2021-2046
- cvss
- 8.2
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.3%
- EPSS 2.3% chance of exploitation in 30 days, percentile 83%
- public exploits
- 0
- none known
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.
Patch / fix
- maven org.sonatype.nexus:nexus-repository 3.34.0-01
- sonatype nexus_repository_manager 3.34.1-01
Exploit prediction
2.32% chance of exploitation in the next 30 days, higher than 83% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 8.2 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N |
| NVD | 2.0 | 6.4 | AV:N/AC:L/Au:N/C:P/I:P/A:N |
| GitHub | 3.1 | 8.2 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| maven | org.sonatype.nexus:nexus-repository | >=3.0.0, <3.34.0-01 |
3.34.0-01 |
Classification
- Weakness
-
- CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component
References
-
support.sonatype.com
/hc/en-us/articles/4405941762579
web, patch, vendor-advisory
-
issues.sonatype.org
/secure/ReleaseNote.jspa
web, not-applicable
-
nvd.nist.gov
/vuln/detail/CVE-2021-40143
advisory
-
github.com
/sonatype/nexus-public
package
-
help.sonatype.com
/repomanager3/release-notes/2021-release-notes
web
Sources
- CVE List CVE-2021-40143
- GitHub Advisory GHSA-f34x-8pf6-qc9c
- NVD CVE-2021-40143
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