CVE-2021-21642

mediumpriority · attend · 45EPSS 0.378 · 99 %ileEUUS

grimoire priorityP1 · Urgent

Exploitable?

—

no known exploitation

Likely / severe?

37.8% (99th) EPSS

CVSS 5.5 · medium

Is it mine?

3 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · nvd · osv

EPSS · scored 2026-10-28

Jenkins Config File Provider Plugin 3.7.0 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks.

cvss

Technical severity, 0–10. One row per scoring source.

8.1

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5.5–8.1

v2.05.5mediumAV:N/AC:L/Au:S/C:P/I:P/A:Nprimary · NVD / NIST USexploitability 8 · impact 4.9

v3.18.1highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Nprimary · NVD / NIST USexploitability 2.8 · impact 5.2

v3.18.1highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Nsecondary · OSV

v3.18.1highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N/E:Hsecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-611USprimaryCWE-611US

affected products (3)

Products and version ranges known to be affected.

Jenkins Project Jenkins Config File Provider Plugin≤ unspecified ≤3.7.0enisa_euvdEU
jenkins config file provider≤ 3.7.0nvdUScpe:2.3:a:jenkins:config_file_provider:*:*:*:*:*:*:*:*
Maven org.jenkins-ci.plugins:config-file-provider< 3.7.1osvUSpkg:maven/org.jenkins-ci.plugins/config-file-provider

advisories (1)

Vendor and ecosystem advisories describing this.

GHSA-q7xg-hh3q-hc68XML External Entity Reference vulnerability in Jenkins Config File Provider Plugin2022-05-24ghsa · osvUS
Jenkins Config File Provider Plugin 3.7.0 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks. This allows attackers with the ability to define Maven configuration files to have Jenkins parse a crafted configuration file that uses external entities for extraction of secrets from the Jenkins controller or server-side request forgery. Jenkins Config File Provider Plugin 3.7.1 disables external entity resolution for its XML parser.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd osv NVD CVE.org MITRE

published 2021-04-21modified 2026-06-17

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Related entries.

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+1517 more

references (20)

External citations — patches, advisories, analysis.

scry

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