CVE-2021-21658 json
XML external entity vulnerability in Jenkins Nuget Plugin
published 2021-05-25 5 y ago modified 2026-06-17 4 mo ago also GHSA-p674-hh8x-rv5h , EUVD-2022-4692
- cvss
- 9.1
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.5%
- EPSS 1.5% chance of exploitation in 30 days, percentile 75%
- public exploits
- 0
- none known
Summary
Jenkins Nuget Plugin 1.0 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks.
Patch / fix
- maven org.jenkins-ci.plugins:nuget 1.1
Exploit prediction
1.54% chance of exploitation in the next 30 days, higher than 75% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N |
| NVD | 2.0 | 6.4 | AV:N/AC:L/Au:N/C:P/I:P/A:N |
| GitHub | 3.1 | 9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| maven | org.jenkins-ci.plugins:nuget | <1.1 |
1.1 |
Affected products
- Jenkins project Jenkins Nuget Plugin
Classification
- Weakness
-
- CWE-611 Improper Restriction of XML External Entity Reference
References
-
github.com
/jenkinsci/nuget-plugin/commit/542bf38ac52f045741a5670e1644af351878f7e0
web
-
github.com
/jenkinsci/nuget-plugin/commit/c8ed4cb5b1c42f3c407f9f418b4e0b4274bea5a9
web
-
jenkins.io
/security/advisory/2021-05-25/#SECURITY-2340
web, vendor-advisory
-
openwall.com
/lists/oss-security/2021/05/25/3
mailing-list, web, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2021-21658
advisory
-
github.com
/jenkinsci/nuget-plugin
package
Sources
- CVE List CVE-2021-21658
- GitHub Advisory GHSA-p674-hh8x-rv5h
- NVD CVE-2021-21658
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