# CVE-2021-43576: XXE vulnerability in Jenkins pom2config Plugin


- **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Fix available:** No
- **Published:** 12 Nov 2021
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-ppv9-v43c-xqpp

## What is CVE-2021-43576?

CVE-2021-43576 is a medium-severity vulnerability in Jenkins pom2config Plugin, published on 12 Nov 2021. 

### Official 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.

Weakness: CWE-611 (Improper Restriction of XML External Entity Reference)

## Which versions are affected by CVE-2021-43576?

2 open source packages ship an affected version, including org.jenkins-ci.plugins:pom2config. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `org.jenkins-ci.plugins:pom2config` | Maven | All versions to 1.2 | None |
| `org.jenkins-ci.plugins:pom2config` | Maven | All versions to 1.2 | None |

Products: Jenkins Pom2config.

## How do I fix CVE-2021-43576?

No fix has been published for CVE-2021-43576 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-43576 being exploited?

There is no known exploitation of CVE-2021-43576 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-43576 and fix it if it is affected.

What it is: CVE-2021-43576 is a medium-severity vulnerability in Jenkins pom2config Plugin, published on 12 Nov 2021. 
Exploitation: There is no known exploitation of CVE-2021-43576 in the wild and no public exploit code.

Affected packages and fixed versions:
- org.jenkins-ci.plugins:pom2config (Maven): affected all versions up to 1.2; no fix listed
- org.jenkins-ci.plugins:pom2config (Maven): affected all versions up to 1.2; no fix listed

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2021-43576/ (Markdown: https://insights.sbomify.com/CVE-2021-43576/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-43576
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-43576
- OSV: https://osv.dev/vulnerability/CVE-2021-43576

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-43576/
Summaries are generated and may contain mistakes; the official description above is the record.