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Vulnerability record · CVE-2020-1740 · published 16 March 2020

CVE-2020-1740: Redhat ansible information exposure vulnerability

Redhat · Ansible

A flaw was found in Ansible Engine when using Ansible Vault for editing encrypted files. When a user executes "ansible-vault edit", another user on the same computer can read the old and new secret, as it is created in a temporary file with mkstemp and the returned file descriptor is closed and the method write_data is called to write the existing secret in the file. This method will delete the file before recreating it insecurely. All versions in 2.7.x, 2.8.x and 2.9.x branches are believed to be vulnerable.

4.7 CVSS 3.1 Medium EPSS 0.38% · top 70.9% CWE-377 · CWE-377CWE-200 · Information exposure
4.7CVSS 3.1 base score, v2 1.9
0.38%EPSS exploitation probability, 30 days
NoNot in CISA KEV
6Affected product versions listed by NVD
16References
17 Jun 2026Last modified by NVD

Description

A flaw was found in Ansible Engine when using Ansible Vault for editing encrypted files. When a user executes "ansible-vault edit", another user on the same computer can read the old and new secret, as it is created in a temporary file with mkstemp and the returned file descriptor is closed and the method write_data is called to write the existing secret in the file. This method will delete the file before recreating it insecurely. All versions in 2.7.x, 2.8.x and 2.9.x branches are believed to be vulnerable.

CVSS:3.1/AV:L/AC:H/PR:L/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://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1740 Issue TrackingVendor Advisory
https://github.com/ansible/ansible/issues/67798 Issue TrackingThird Party Advisory
https://lists.debian.org/debian-lts-announce/2020/05/msg00005.html Mailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DKPA4KC3OJSUFASUYMG66HK
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MRRYUU5ZBLPBXCYG6CFP35D
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WQVOQD4VAIXXTVQAJKTN7NU
https://security.gentoo.org/glsa/202006-11 Third Party Advisory
https://www.debian.org/security/2021/dsa-4950 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1740 Issue TrackingVendor Advisory
https://github.com/ansible/ansible/issues/67798 Issue TrackingThird Party Advisory
https://lists.debian.org/debian-lts-announce/2020/05/msg00005.html Mailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DKPA4KC3OJSUFASUYMG66HK
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MRRYUU5ZBLPBXCYG6CFP35D
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WQVOQD4VAIXXTVQAJKTN7NU
https://security.gentoo.org/glsa/202006-11 Third Party Advisory
https://www.debian.org/security/2021/dsa-4950 Third Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2020-1740), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.