CVE-2021-21645

MEDIUMNVD 4.34.3—

4.3

Jenkins Config File Provider Plugin 3.7.0 and earlier does not perform permission checks in several HTTP endpoints, attackers with Overall/Read permission to enumerate configuration file IDs.

CVSS v3: 4.3
EG Score: 4.3(medium)
EPSS: 30.1%
KEV: Not listed

Published

April 21, 2021

Last Modified

November 21, 2024

References (4)

jenkinsci-cert@googlegroupshttp://www.openwall.com/lists/oss-security/2021/04/21/2
jenkinsci-cert@googlegroupshttps://www.jenkins.io/security/advisory/2021-04-21/#SECURITY-2203
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2021/04/21/2
af854a3a-2127-422b-91ae-364da2661108https://www.jenkins.io/security/advisory/2021-04-21/#SECURITY-2203

Patch Availability(5)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
redhat	rhmtc/openshift-velero-plugin-rhel8:v1.4.6-4	2021-07-21	redhat
redhat	jenkins-2-plugins-0:4.5.1623326336-1.el7	2021-07-02	redhat
redhat	jenkins-2-plugins-0:3.11.1624366838-1.el7	2021-06-30	redhat
redhat	jenkins-2-plugins-0:4.6.1623162648-1.el8	2021-06-22	redhat
redhat	redhat-release-coreos-0:47.83-2.el8	2021-06-01	redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)

Maven(1)

Package	Vulnerable range	Fixed in	Dependents
org.jenkins-ci.plugins:config-file-provider	1.0 ... 3.7.0 (58 versions)	3.7.1	—

All Vendor Advisories

(5)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 9× in last 7d / 9× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-27 13:39 UTCepss_batch
2026-05-26 18:05 UTCEG score recompute
2026-05-26 18:05 UTCVendor advisory
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-25 17:46 UTCOSV refresh
2026-05-24 16:49 UTCepss_batch

Frequently asked(5)

What is CVE-2021-21645?

CVE-2021-21645 is a medium vulnerability published on April 21, 2021. Jenkins Config File Provider Plugin 3.7.0 and earlier does not perform permission checks in several HTTP endpoints, attackers with Overall/Read permission to enumerate configuration file IDs.

When was CVE-2021-21645 disclosed?

CVE-2021-21645 was first published in the National Vulnerability Database on April 21, 2021, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2021-21645 actively exploited?

CVE-2021-21645 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 30.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-21645?

CVE-2021-21645 has a CVSS v3 base score of 4.3 (NVD).

How do I remediate CVE-2021-21645?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-21645, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2021-21645

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CVE-2021-21645

📅 Published

🔄 Last Modified

🔗 References (4)