# CVE-2021-28655: Apache Zeppelin Improper Input Validation vulnerability

Source: https://junglewise.ai/threats/cve-2021-28655-apache-zeppelin-improper-input-validation-vulnerability  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2023-07-06  
License: CC BY 4.0 with a link back

CVE-2021-28655 · Severity: low · CVSS 3.1 · Published 2023-07-06

Apache Zeppelin Improper Input Validation vulnerability

Technologies: [org.apache.zeppelin:zeppelin (Maven)](https://junglewise.ai/threats/technologies/org-apache-zeppelin-zeppelin). Vendors: [Maven](https://junglewise.ai/threats/vendors/maven).

## Quick answers

**Is CVE-2021-28655 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2021-28655 being exploited in the wild.

**How severe is CVE-2021-28655?** Low severity, with a CVSS score of 3.1, published 6 July 2023.

**Which products and versions are affected?** org.apache.zeppelin:zeppelin (Maven) ECOSYSTEM:introduced=0,fixed=0.10.0.

**Is there a fix for CVE-2021-28655?** Yes. org.apache.zeppelin:zeppelin (Maven): upgrade to 0.10.0 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2021-28655?** Check whether you run org.apache.zeppelin:zeppelin (Maven) 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.apache.zeppelin:zeppelin (Maven): upgrade to 0.10.0 or later

  ```sh
  # set org.apache.zeppelin:zeppelin to 0.10.0 in your pom.xml or build.gradle
  ```


## Affected products

- org.apache.zeppelin:zeppelin (Maven) ECOSYSTEM:introduced=0,fixed=0.10.0

## Identifiers

- CVE-2021-28655
- GHSA-gm67-h5wr-w3cv

## Related threats

- [Apache Zeppelin Cross-site Scripting vulnerability](https://junglewise.ai/threats/cve-2022-46870-apache-zeppelin-cross-site-scripting-vulnerability)
- [Authentication bypass in Apache Zeppelin](https://junglewise.ai/threats/cve-2020-13929-authentication-bypass-in-apache-zeppelin)
- [Bash command injection in Apache Zeppelin](https://junglewise.ai/threats/cve-2019-10095-bash-command-injection-in-apache-zeppelin)
- [Cross-site Scripting in Apache Zeppelin](https://junglewise.ai/threats/cve-2021-27578-cross-site-scripting-in-apache-zeppelin)
- [Cross-site Scripting in Apache Zeppelin](https://junglewise.ai/threats/cve-2018-1328-cross-site-scripting-in-apache-zeppelin)