# CVE-2020-10199: Nexus Repository Manager 3 - Remote Code Execution

Source: https://junglewise.ai/threats/cve-2020-10199-sonatype-nexus-repository-remote-code-execution-vulnerability  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2020-04-14. Updated: 2026-05-10  
License: CC BY 4.0 with a link back

CVE-2020-10199 · Severity: critical · CVSS 3.1 · Exploited in the wild · Published 2020-04-14

Sonatype Nexus Repository is vulnerable to Java Expression Language (EL) injection, which allows an authenticated remote attacker to execute arbitrary code on the server. The vulnerability exists in versions prior to 3.21.2.

Technologies: [Sonatype Nexus Repository](https://junglewise.ai/threats/technologies/nexus-repository). Vendors: [Maven](https://junglewise.ai/threats/vendors/maven), [Sonatype](https://junglewise.ai/threats/vendors/sonatype).

## Quick answers

**Is CVE-2020-10199 exploited in the wild?** Yes. CVE-2020-10199 is known to be exploited in the wild, first recorded on 3 November 2021. Treat it as urgent.

**How severe is CVE-2020-10199?** Critical severity, with a CVSS score of 3.1, published 14 April 2020.

**Which products and versions are affected?** org.sonatype.nexus:nexus-extdirect (Maven) ECOSYSTEM:introduced=0,fixed=3.21.2.

**Is there a fix for CVE-2020-10199?** Yes. org.sonatype.nexus:nexus-extdirect (Maven): upgrade to 3.21.2 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2020-10199 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2020-10199?** Check whether you run org.sonatype.nexus:nexus-extdirect (Maven) or Sonatype Nexus Repository at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- org.sonatype.nexus:nexus-extdirect (Maven): upgrade to 3.21.2 or later

  ```sh
  # set org.sonatype.nexus:nexus-extdirect to 3.21.2 in your pom.xml or build.gradle
  ```


## Affected products

- Sonatype Nexus Repository before 3.21.2

## Identifiers

- CVE-2020-10199
- GHSA-g2f6-v5qh-h2mq

## Timeline

- 2020-04-01: disclosed: NVD Published Date
- 2021-11-03: kev added: Added to CISA Known Exploited Vulnerabilities Catalog
- 2020-04-01: patched: Fixed in version 3.21.2
- exploited: Reported as exploited in the wild and listed in CISA KEV.

## Related threats

- [Sonatype Nexus Repository privilege escalation in script execution](https://junglewise.ai/threats/cve-2026-77124-sonatype-nexus-repository-privilege-escalation-in-script)
- [Sonatype Nexus Repository denial of service via oversized POM metadata](https://junglewise.ai/threats/cve-2026-77121-sonatype-nexus-repository-denial-of-service-via-oversized-pom)
- [Sonatype Nexus Repository 3 SSRF in SSL Certificate Retrieval endpoint](https://junglewise.ai/threats/cve-2026-7494-sonatype-nexus-repository-3-ssrf-in-ssl-certificate-retrieval)
- [Sonatype Nexus Repository improper restriction of authentication attempts](https://junglewise.ai/threats/cve-2026-3329-sonatype-nexus-repository-improper-restriction-of-authentication)
- [An authenticated user with upload permission to a hosted repository can store content that causes arbitrary JavaScript…](https://junglewise.ai/threats/cve-2026-7308-sonatype-nexus-repository-stored-xss-in-html-index-page)