# CVE-2018-10855: ansible: Ansible 2.5 prior to 2.5.5, and 2.4 prior to 2.4.5, do not honor the no_log task flag for failed tasks

CVE-2018-10855 is fixed in ansible on 1 platform by ansible 2.5.1+dfsg-1ubuntu0.1 (version 2.5.1+dfsg-1ubuntu0.1), released July 30, 2019. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2018-10855
- Priority: Routine
- CVSS: n/a (Low)
- EPSS: 0.0309
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jul 2, 2018

## Description

Ansible 2.5 prior to 2.5.5, and 2.4 prior to 2.4.5, do not honor the no_log task flag for failed tasks. When the no_log flag has been used to protect sensitive data passed to a task from being logged, and that task does not run successfully, Ansible will expose sensitive data in log files and on the terminal of the user running Ansible.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | ansible Ubuntu 18.04.6 LTS (bionic) | 2.5.1+dfsg-1ubuntu0.1 | [ansible 2.5.1+dfsg-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-ansible-2.5.1-dfsg-1ubuntu0.1.md) | Jul 30, 2019 |

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Data as of 2026-11-07T18:46:35Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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