CVE-2021-21607
Excessive memory allocation in graph URLs leads to denial of service in Jenkins
6.5
MEDIUM
CVSS 3.1
EPSS 1.4%
Description
Jenkins 2.274 and earlier, LTS 2.263.1 and earlier does not limit sizes provided as query parameters to graph-rendering URLs, allowing attackers to request crafted URLs that use all available memory in Jenkins, potentially leading to out of memory errors.
How to fix CVE-2021-21607
To remediate CVE-2021-21607, upgrade the affected package to a fixed version below.
- —upgrade to 2.274.1 or later
- —upgrade to 2.263.2 or later
Is CVE-2021-21607 being exploited?
Low — EPSS is 1.4%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 2.274.1
- from 0, < 2.263.2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |