CVE-2021-21640
mediumpriority · track · 18EPSS 0.019 · 80 %ileEUUSEPSS · scored 2026-10-27
Jenkins 2.286 and earlier, LTS 2.277.1 and earlier does not properly check that a newly created view has an allowed name, allowing attackers with View/Create permission to create views with invalid or already-used names.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (7)
Products and version ranges known to be affected.
advisories (2)
Vendor and ecosystem advisories describing this.
- GHSA-w2hv-rcqr-2h7rView name validation bypass in Jenkins2022-05-24ghsa · osvUS
Jenkins 2.286 and earlier, LTS 2.277.1 and earlier does not properly check that a newly created view has an allowed name. When a form to create a view is submitted, the name is included twice in the submission. One instance is validated, but the other instance is used to create the value. This allows attackers with View/Create permission to create views with invalid or already-used names. Jenkins 2.287, LTS 2.277.2 uses the same submitted value for validation and view creation.
- BIT-jenkins-2021-216402024-03-06vendor · osvUS
Jenkins 2.286 and earlier, LTS 2.277.1 and earlier does not properly check that a newly created view has an allowed name, allowing attackers with View/Create permission to create views with invalid or already-used names.
also known as (5)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (22)
External citations — patches, advisories, analysis.
- http://www.openwall.com/lists/oss-security/2021/04/07/2cnnvd
- https://access.redhat.com/security/cve/cve-2021-21640cnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2021-21640cnnvd
- https://packetstormsecurity.com/files/162759/Red-Hat-Security-Advisory-2021-1561-01.htmlcnnvd
- https://packetstormsecurity.com/files/163688/Red-Hat-Security-Advisory-2021-2437-01.htmlcnnvd
- https://packetstormsecurity.com/files/163957/Red-Hat-Security-Advisory-2021-3361-01.htmlcnnvd
- https://packetstormsecurity.com/files/168216/Red-Hat-Security-Advisory-2022-6133-01.htmlcnnvd
- https://vigilance.fr/vulnerability/Jenkins-Core-Plugins-multiple-vulnerabilities-35019cnnvd
Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.
Free scan