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Vulnerability record · CVE-2018-10855 · published 3 July 2018

CVE-2018-10855: Redhat ansible engine sensitive information in log file vulnerability

Redhat · Ansible Engine

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.

5.9 CVSS 3.1 Medium EPSS 3.1% · top 12.6% CWE-532 · Sensitive information in log file
5.9CVSS 3.1 base score, v2 4.3
3.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
6Affected product versions listed by NVD
22References
17 Jun 2026Last modified by NVD

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.

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

6 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://access.redhat.com/errata/RHBA-2018:3788 Vendor Advisory
https://access.redhat.com/errata/RHSA-2018:1948 Vendor Advisory
https://access.redhat.com/errata/RHSA-2018:1949 Vendor Advisory
https://access.redhat.com/errata/RHSA-2018:2022 Vendor Advisory
https://access.redhat.com/errata/RHSA-2018:2079 Vendor Advisory
https://access.redhat.com/errata/RHSA-2018:2184 Vendor Advisory
https://access.redhat.com/errata/RHSA-2018:2585 Vendor Advisory
https://access.redhat.com/errata/RHSA-2019:0054 Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10855 Issue TrackingVendor Advisory
https://usn.ubuntu.com/4072-1/ Third Party Advisory
https://www.debian.org/security/2019/dsa-4396 Third Party Advisory
https://access.redhat.com/errata/RHBA-2018:3788 Vendor Advisory
https://access.redhat.com/errata/RHSA-2018:1948 Vendor Advisory
https://access.redhat.com/errata/RHSA-2018:1949 Vendor Advisory
https://access.redhat.com/errata/RHSA-2018:2022 Vendor Advisory
https://access.redhat.com/errata/RHSA-2018:2079 Vendor Advisory
https://access.redhat.com/errata/RHSA-2018:2184 Vendor Advisory
https://access.redhat.com/errata/RHSA-2018:2585 Vendor Advisory
https://access.redhat.com/errata/RHSA-2019:0054 Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10855 Issue TrackingVendor Advisory
https://usn.ubuntu.com/4072-1/ Third Party Advisory
https://www.debian.org/security/2019/dsa-4396 Third Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2018-10855), CISA KEV, FIRST EPSS (scores of 2026-10-02). This page is refreshed as NVD updates the record.