CVE-2021-43576

Name: CVE-2021-43576
Creator: NVD / NIST
Published: 2021-11-12T11:15:08.237+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 2.37%

Last modified Jun 17, 2026

CVE-2021-43576 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. Jenkins pom2config Plugin 1.2 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks, allowing attackers with Overall/Read and Item/Read permissions to have Jenkins parse a crafted XML file that uses external entities for extraction of secrets from the Jenkins controller or server-side request forgery.. EPSS estimates a 2.37% chance of exploitation in the next 30 days.

Description

Jenkins pom2config Plugin 1.2 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks, allowing attackers with Overall/Read and Item/Read permissions to have Jenkins parse a crafted XML file that uses external entities for extraction of secrets from the Jenkins controller or server-side request forgery.

Metrics

CVSS 3.1

6.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

EPSS Probability

2.37%

81.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-611

Affected Software

Vendor	Product	Versions
Jenkins	Pom2config	<= 1.2

References

http://www.openwall.com/lists/oss-security/2021/11/12/1Mailing List, Third Party Advisory
https://www.jenkins.io/security/advisory/2021-11-12/#SECURITY-2415Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-1314/Third Party Advisory, VDB Entry
http://www.openwall.com/lists/oss-security/2021/11/12/1Mailing List, Third Party Advisory
https://www.jenkins.io/security/advisory/2021-11-12/#SECURITY-2415Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-1314/Third Party Advisory, VDB Entry

Timeline

Published: Nov 12, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-43576?

How severe is CVE-2021-43576?

CVE-2021-43576 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 2.37% probability of exploitation in the next 30 days.

How do I fix CVE-2021-43576?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-43576?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST