CVE-2021-21644 — config-file-provider
MEDIUMCVE-2021-21644 is a medium-severity (CVSS 5.4) Cross-Site Request Forgery (CSRF) vulnerability in org.jenkins-ci.plugins:config-file-provider. A fix is available for org.jenkins-ci.plugins:config-file-provider — see the affected versions and patch details below.
CSRF vulnerability in Jenkins Config File Provider Plugin allows deleting configuration files
EPSS Exploitation Probability
EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.
How urgent is this, really
CVE-2021-21644 plotted by exploitation likelihood (EPSS) against impact (CVSS). The shaded corner — EPSS 50%+ and CVSS 7.0+ — is where this CVE doesn't sit, though severity or exploitability alone can still warrant action.
Where this sits among everything scored
Of 377,166 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Real counts from FIRST.org, not a sample — log-scaled since the landscape is heavily right-skewed.
Real-World Exposure
org.jenkins-ci.plugins:config-file-providerReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.
Description
A cross-site request forgery (CSRF) vulnerability in Jenkins Config File Provider Plugin 3.7.0 and earlier allows attackers to delete configuration files corresponding to an attacker-specified ID.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| ☕Maven | org.jenkins-ci.plugins:config-file-provider | all versions | 3.7.1org.jenkins-ci.plugins:config-file-provider:3.7.1 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.jenkins-ci.plugins:config-file-provider, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update org.jenkins-ci.plugins:config-file-provider to 3.7.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2021-21644 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like CVE-2021-21644 can be triaged on real exposure rather than presence alone.
Tailored to CVE-2021-21644. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Fixing This On Your OS
If you run this on a Linux distribution, patch through your package manager against the distro's own security advisory below — it tracks the exact backported fix for your release, which can ship on a different timeline (and sometimes a different severity) than the upstream project.
| Product | Fixed in | Advisory |
|---|---|---|
| Red Hat Migration Toolkit for Containers 1.4 | rhmtc/openshift-migration-controller-rhel8:v1.4.6-4 | RHBA-2021:2854 |
| Red Hat OpenShift Container Platform 3.11 | jenkins-2-plugins-0:3.11.1624366838-1.el7 | RHSA-2021:2517 |
| Red Hat OpenShift Container Platform 4.5 | jenkins-2-plugins-0:4.5.1623326336-1.el7 | RHSA-2021:2431 |
| Red Hat OpenShift Container Platform 4.6 | jenkins-2-plugins-0:4.6.1623162648-1.el8 | RHBA-2021:2407 |
| Red Hat OpenShift Container Platform 4.7 | cri-o-0:1.20.2-12.rhaos4.7.git9f7be76.el7 | RHSA-2021:2122 |
| Red Hat OpenShift Container Platform 4.8 | atomic-openshift-service-idler-0:4.8.0-202106281541.p0.git.39cfc66.assembly.stream.el8 | RHSA-2021:2437 |
Frequently Asked Questions
Is CVE-2021-21644 in your dependencies?
O3 Security finds CVE-2021-21644 across Maven dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.