# CVE-2020-35459: crmsh: An issue was discovered in ClusterLabs crmsh through 4.2.1

CVE-2020-35459 is fixed in crmsh on 1 platform, first by crmsh 4.2.0-2ubuntu1.1, released January 12, 2021. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2020-35459
- Priority: Routine
- CVSS: n/a (Low)
- EPSS: 0.0069
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jan 12, 2021

## Description

An issue was discovered in ClusterLabs crmsh through 4.2.1. Local attackersable to call "crm history" (when "crm" is run) were able to executecommands via shell code injection to the crm history commandline,potentially allowing escalation of privileges.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | crmsh Ubuntu 20.04 LTS (focal) | 4.2.0-2ubuntu1.1 | [crmsh 4.2.0-2ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-crmsh-4.2.0-2ubuntu1.1.md) | Jan 12, 2021 |
| Linux | crmsh Ubuntu 24.10 (oracular) | 4.2.1-2 | [crmsh 4.2.1-2](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-crmsh-4.2.1-2.md) | Jan 16, 2026 |
| Linux | crmsh Ubuntu 25.04 (plucky) | 4.2.1-2 | [crmsh 4.2.1-2](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-crmsh-4.2.1-2.md) | Jan 16, 2026 |

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Data as of 2026-11-08T00:53:09Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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