CVE-2021-21647 json
Missing permission check in Jenkins CloudBees CD Plugin allows scheduling builds
published 2021-04-21 5 y ago modified 2026-06-17 4 mo ago also GHSA-7rx6-4vwv-432g , EUVD-2022-3060
- cvss
- 4.3
- 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 73%
- public exploits
- 0
- none known
Summary
Jenkins CloudBees CD Plugin 1.1.21 and earlier does not perform a permission check in an HTTP endpoint, allowing attackers with Item/Read permission to schedule builds of projects without having Item/Build permission.
Patch / fix
- maven org.jenkins-ci.plugins:electricflow 1.1.18.1, 1.1.22
- Jenkins project Jenkins CloudBees CD Plugin 1.1.18.1
Exploit prediction
1.46% chance of exploitation in the next 30 days, higher than 73% 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:N/I:L/A:N |
| NVD | 2.0 | 4.0 | AV:N/AC:L/Au:S/C:N/I:P/A:N |
| GitHub | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| maven | org.jenkins-ci.plugins:electricflow | <1.1.18.1 >=1.1.19, <1.1.22 |
1.1.18.1 1.1.22 |
Affected products
- Jenkins project Jenkins CloudBees CD Plugin
Classification
- Weakness
-
- CWE-862 Missing Authorization
References
-
github.com
/jenkinsci/electricflow-plugin/commit/597cbb1d767ae92c44b4cbd9525fa53ddab37117
web
-
jenkins.io
/security/advisory/2021-04-21/#SECURITY-2309
web, vendor-advisory
-
openwall.com
/lists/oss-security/2021/04/21/2
mailing-list, web, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2021-21647
advisory
-
github.com
/jenkinsci/electricflow-plugin
package
Sources
- CVE List CVE-2021-21647
- GitHub Advisory GHSA-7rx6-4vwv-432g
- NVD CVE-2021-21647
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