CVE-2021-21661 json
Missing Authorization in Jenkins Kubernetes CLI Plugin
published 2021-06-10 5 y ago modified 2026-06-17 4 mo ago also GHSA-xrg9-wwrq-xmx9 , EUVD-2021-1426
- cvss
- 4.3
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.6%
- EPSS 1.6% chance of exploitation in 30 days, percentile 76%
- public exploits
- 0
- none known
Summary
Jenkins Kubernetes CLI Plugin 1.10.0 and earlier does not perform permission checks in several HTTP endpoints, allowing attackers with Overall/Read permission to enumerate credentials IDs of credentials stored in Jenkins.
Patch / fix
- maven org.jenkins-ci.plugins:kubernetes-cli 1.10.1
Exploit prediction
1.64% chance of exploitation in the next 30 days, higher than 76% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
| NVD | 2.0 | 4.0 | AV:N/AC:L/Au:S/C:P/I:N/A:N |
| GitHub | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| maven | org.jenkins-ci.plugins:kubernetes-cli | <1.10.1 |
1.10.1 |
Affected products
- Jenkins project Jenkins Kubernetes CLI Plugin
Classification
- Weakness
-
- CWE-862 Missing Authorization
References
-
jenkins.io
/security/advisory/2021-06-10/#SECURITY-2370
web, vendor-advisory
-
openwall.com
/lists/oss-security/2021/06/10/14
mailing-list, web, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2021-21661
advisory
Sources
- CVE List CVE-2021-21661
- GitHub Advisory GHSA-xrg9-wwrq-xmx9
- NVD CVE-2021-21661
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