{"id":"UBUNTU-CVE-2026-103754","details":"A flaw was found in ansible-runner. The unstream_dir() function, which receives and extracts a streamed zip archive on the worker side of the ansible-runner transmit/worker protocol, re-creates symbolic links from archive content without validating the link target and applies chmod() and utime() to an unsanitized filesystem path derived from the archive member name. A crafted archive processed by a worker that consumes attacker-influenced input can create files, create symbolic links, or change permissions outside the intended target directory, which can be leveraged toward code execution.","modified":"2026-10-02T22:30:18.171937857Z","published":"2026-10-02T00:00:00Z","upstream":["CVE-2026-103754"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-103754"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-103754"},{"type":"REPORT","url":"https://github.com/ansible/ansible-runner/pull/1550"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-103754"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2544510"}],"affected":[{"package":{"name":"ansible-runner","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/ansible-runner?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.4.6-1","1.4.6-1.1","2.1.1-1"],"ecosystem_specific":{"binaries":[{"binary_version":"2.1.1-1","binary_name":"python3-ansible-runner"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-103754.json"}},{"package":{"name":"ansible-runner","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/ansible-runner?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.3.1-2","2.3.4-1","2.3.4-1ubuntu1","2.3.6-1"],"ecosystem_specific":{"binaries":[{"binary_version":"2.3.6-1","binary_name":"python3-ansible-runner"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-103754.json"}},{"package":{"name":"ansible-runner","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/ansible-runner?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.4.1-1"],"ecosystem_specific":{"binaries":[{"binary_name":"python3-ansible-runner","binary_version":"2.4.1-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-103754.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:L"},{"type":"Ubuntu","score":"medium"}]}