CVE-2020-1740

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.

• CWE-377
• CWE-200

• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1740Issue Tracking, Vendor Advisory
• https://github.com/ansible/ansible/issues/67798Issue Tracking, Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2020/05/msg00005.htmlMailing List, Third Party Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DKPA4KC3OJSUFASUYMG66HKJE7ADNGFW/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MRRYUU5ZBLPBXCYG6CFP35D64NP2UB2S/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WQVOQD4VAIXXTVQAJKTN7NUGTJFE2PCB/
• https://security.gentoo.org/glsa/202006-11Third Party Advisory
• https://www.debian.org/security/2021/dsa-4950Third Party Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1740Issue Tracking, Vendor Advisory
• https://github.com/ansible/ansible/issues/67798Issue Tracking, Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2020/05/msg00005.htmlMailing List, Third Party Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DKPA4KC3OJSUFASUYMG66HKJE7ADNGFW/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MRRYUU5ZBLPBXCYG6CFP35D64NP2UB2S/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WQVOQD4VAIXXTVQAJKTN7NUGTJFE2PCB/
• https://security.gentoo.org/glsa/202006-11Third Party Advisory
• https://www.debian.org/security/2021/dsa-4950Third Party Advisory

Published

Mar 16, 2020

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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